  United States Court of Appeals
      for the Federal Circuit
                ______________________

   APPLE INC., A CALIFORNIA CORPORATION,
                Plaintiff-Appellant

                           v.

 SAMSUNG ELECTRONICS CO., LTD., A KOREAN
   CORPORATION, SAMSUNG ELECTRONICS
  AMERICA, INC., A NEW YORK CORPORATION,
 SAMSUNG TELECOMMUNICATIONS AMERICA,
    LLC, A DELAWARE LIMITED LIABILITY
                  COMPANY,
              Defendants-Appellees
             ______________________

                      2014-1802
                ______________________

   Appeal from the United States District Court for the
Northern District of California in No. 5:12-cv-00630-LHK,
Judge Lucy H. Koh.
                 ______________________

              Decided: December 16, 2015
                ______________________

    WILLIAM F. LEE, Wilmer Cutler Pickering Hale and
Dorr LLP, Boston, MA, argued for plaintiff-appellant.
Also represented by SARAH R. FRAZIER, LAUREN B.
FLETCHER, RICHARD WELLS O’NEILL, MARK CHRISTOPHER
FLEMING, ANDREW J. DANFORD; JAMES QUARLES, III,
THOMAS GREGORY SPRANKLING, Washington, DC; MARK D.
SELWYN, Palo Alto, CA; RACHEL KREVANS, CHRISTOPHER
2               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



ROBINSON, NATHANIEL BRYAN SABRI, Morrison & Foerster,
LLP, San Francisco, CA; ERIK JEFFREY OLSON, Palo Alto,
CA.

    KATHLEEN M. SULLIVAN, Quinn Emanuel Urquhart &
Sullivan, LLP, New York, NY, argued for defendant-
appellees. Also represented by WILLIAM ADAMS; BRIAN
COSMO CANNON, VICTORIA FISHMAN MAROULIS, KEVIN P.B.
JOHNSON, Redwood Shores, CA; SCOTT L. WATSON,
MICHAEL THOMAS ZELLER, JOHN B. QUINN, Los Angeles,
CA; KEVIN ALEXANDER SMITH, San Francisco, CA.

   MIKE MCKOOL, McKool Smith, P.C., Dallas TX, for
amicus curiae Ericsson Inc. Also represented by
THEODORE STEVENSON, III; JOHN BRUCE CAMPBELL, JOEL
LANCE THOLLANDER, Austin, TX.

    JOHN D. HAYNES, Alston & Bird LLP, Atlanta, GA, for
amici curiae Nokia Corporation, Nokia USA, Inc. Also
represented by PATRICK J. FLINN; RYAN W. KOPPELMAN,
East Palo, CA.

   MATTHEW SCHRUERS, Computer & Communications
Industry Association, Washington, DC, for amicus curiae
Computer & Communications Industry Association.

   JOSEPH CARL CECERE, JR., Cecere PC, Dallas, TX, for
amicus curiae The National Black Chamber of Commerce.

    KEVIN MCGANN, White & Case LLP, New York, NY,
for amici curiae Google Inc., HTC Corporation, HTC
America, Inc., LG Electronics, Inc., Rackspace Hosting,
Inc., Red Hat, Inc., SAP America, Inc., Lenovo, Inc., eBay,
Inc., ASUSTeK Computer Inc., Facebook, Inc., Newegg
Inc. Also represented by CHRISTOPHER J. GLANCY;
WARREN S. HEIT, Palo Alto, CA.
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.              3



    KIMBERLY N. BROWN, Chevy Chase, MD, for amici cu-
riae Michael J. Santorelli and Charles M. Davidson.

    CHARLES DUAN, Public Knowledge, Washington, D.C.,
for amici curiae Public Knowledge and Electronic Frontier
Foundation.
                  ______________________

     Before PROST, Chief Judge, MOORE, and REYNA, Cir-
                      cuit Judges.
  Opinion for the court filed by Circuit Judge MOORE, in
            which Circuit Judge REYNA joins.
    Concurring opinion filed by Circuit Judge REYNA.
     Dissenting opinion filed by Chief Judge PROST.
MOORE, Circuit Judge.
    Apple Inc. appeals from an order of the district court
denying Apple’s request for a permanent injunction
against Samsung Electronics Company, Ltd.; Samsung
Electronics America, Inc.; and Samsung Telecommunica-
tions America, LLC (collectively, “Samsung”). We vacate
and remand for further proceedings.
                         BACKGROUND
   In 2007, Apple introduced the iPhone, revolutionizing
the cell phone market. To develop the iPhone, Apple
invested billions of dollars over several years—investment
that came with significant risk. J.A. 10424–26, 10585–98.
Indeed, Apple executives referred to the iPhone as a “you
bet your company” product because of the uncertainty
associated with launching an untested product line in a
new market. J.A. 10425–26, 10451–52.
   To protect the inventions developed as a result of this
investment, Apple applied for and received patents cover-
ing much of the innovative technology incorporated into
4               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



the iPhone. Apple’s patents are numerous and include
U.S. Patent Nos. 5,946,647; 8,046,721; and 8,074,172, the
patents at issue in this appeal. Claim 8 of the ’721 patent
claims a touchscreen device that unlocks when the user
makes contact with an “unlock image” and moves that
image to a second, predefined location. ’721 patent col. 19
l. 51 – col. 20 l. 12. Although seemingly straightforward,
Apple considered this feature so core to the Apple iPhone
user experience that it opened the first iPhone ad with
imagery illustrating the operation of this “slide to unlock”
feature. J.A. 10433–34, 21014. Claim 9 of the ’647 patent
claims a system that detects “data structures” within text
and generates links to specific actions that can be per-
formed for each type of detected structure—for example,
detecting a phone number in a text message and creating
a link that would allow the user to dial the phone number
or store it in an address book. ’647 patent col. 7 ll. 52–54,
fig.7. And claim 18 of the ’172 patent claims a method for
automatically correcting spelling errors on touchscreen
devices. ’172 patent col. 12 l. 49 – col. 13 l. 4.
    The iPhone was undisputedly successful. After its re-
lease, reviewers praised a number of features on the
iPhone, including its multitouch screen, software, ease of
use, and overall user experience. Trial Transcript Day 2
at 436–40, Apple, Inc. v. Samsung Elecs. Co., No. 12-CV-
00630-LHK (N.D. Cal. 2014) (No. 1622). Other companies
followed. Samsung, in particular, developed competing
smartphones. Internal Samsung documents show that
Samsung “paid close attention to, and tried to incorpo-
rate” some of Apple’s patented technology, which was
“indicative of copying by Samsung.” Apple, Inc. v. Sam-
sung Elecs. Co., No. 12-CV-00630-LHK, 2014 WL
7496140, at *14 (N.D. Cal. Aug. 27, 2014) (“Injunction
Order”). Today, Apple and Samsung are fierce competi-
tors in the smartphone and tablet market. Id. at *8.
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.             5



    The instant appeal springs from a suit filed by Apple
against Samsung in February 2012 alleging infringement
of five patents directed to smartphone and tablet interfac-
es, including the ’721 patent, the ’647 patent, and the ’172
patent. The district court held on summary judgment
that Samsung infringed the ’172 patent. The case pro-
ceeded to trial, and a jury found that nine Samsung
products infringed one or both of Apple’s ’647 and ’721
patents. The jury awarded Apple a total of $119,625,000
for Samsung’s infringement of the three patents.
    Following the verdict, Apple filed a motion seeking a
permanent injunction that would bar Samsung from, inter
alia, making, using, selling, developing, advertising, or
importing into the United States software or code capable
of implementing the infringing features in its products.
That is, Apple did not seek to enjoin Samsung’s infringing
smartphones and tablets, but only the infringing features.
Moreover, Apple’s proposed injunction included a 30-day
“sunset period” that would stay enforcement of the injunc-
tion until 30 days after it was entered by the district
court, during which Samsung could design around the
infringing features. This “sunset period” coincided with
Samsung’s representations at trial that it could remove
the infringing features from its products quickly and
easily. Injunction Order at *20–22.
   Despite the narrowness of Apple’s proposed injunction,
the district court denied Apple’s motion, finding that
Apple had not shown that it would suffer irreparable
harm without an injunction. Id. at *23. Predicated
entirely on this finding, the district court reasoned that
Apple could not establish that monetary damages were
inadequate. Id. at *19. Although the district court found
that the public interest favored Apple’s request and that
the narrowness of Apple’s proposed injunction tilted the
balance of hardships in Apple’s favor, it determined that
these factors did not overcome Apple’s lack of irreparable
6                APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



harm. Id. at *23. Apple appealed. We have jurisdiction
under 28 U.S.C. § 1295(a)(1).
                           DISCUSSION
    The Patent Act provides a patentee with the “right to
exclude others from making, using, offering for sale, or
selling the [patented] invention.” 35 U.S.C. § 154(a)(1).
This right has its roots in the U.S. Constitution’s Intellec-
tual Property Clause, which refers to inventors’ “exclusive
Right to their respective . . . Discoveries.” U.S. Const. art.
I, § 8, cl. 8. In furtherance of this right to exclude, district
courts “may grant injunctions in accordance with the
principles of equity to prevent the violation of any right
secured by patent, on such terms as the court deems
reasonable.” 35 U.S.C. § 283. “[N]ot surprising[ly], given
the difficulty of protecting a right to exclude through
monetary remedies that allow an infringer to use an
invention against the patentee’s wishes,” historically
courts have “granted injunctive relief upon a finding of
infringement in the vast majority of patent cases.” eBay
Inc. v. MercExchange, L.L.C., 547 U.S. 388, 395 (2006)
(Roberts, C.J., concurring) (emphasis in original).
   A party seeking a permanent injunction must demon-
strate:
    (1) that it has suffered an irreparable injury;
    (2) that remedies available at law, such as mone-
    tary damages, are inadequate to compensate for
    that injury; (3) that, considering the balance of
    hardships between the plaintiff and defendant, a
    remedy in equity is warranted; and (4) that the
    public interest would not be disserved by a per-
    manent injunction.
Id. at 391 (majority opinion). The decision to award or
deny permanent injunctive relief lies within the equitable
discretion of the district court; these traditional equitable
principles do not permit the adoption of “certain expan-
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.              7



sive principles suggesting that injunctive relief could not
issue in a broad swath of cases.” Id. at 391, 393. The
district court’s decision is reviewable for abuse of discre-
tion. Id. at 391. A court abuses its discretion when it
“ma[kes] a clear error of judgment in weighing relevant
factors or exercise[s] its discretion based upon an error of
law or clearly erroneous factual findings.” Innogenetics,
N.V. v. Abbott Labs., 512 F.3d 1363, 1379 (Fed. Cir. 2008).
We review the district court’s conclusion as to each eBay
factor for abuse of discretion and its underlying factual
findings for clear error. i4i Ltd. P’ship v. Microsoft Corp.,
598 F.3d 831, 861 (Fed. Cir. 2010).
                   A.     Irreparable Harm
    To satisfy the first eBay factor, the patentee must
show that it is irreparably harmed by the infringement.
This requires proof that a “causal nexus relates the al-
leged harm to the alleged infringement.” Apple Inc. v.
Samsung Elecs. Co., 695 F.3d 1370, 1374 (Fed. Cir. 2012)
(“Apple II”). This just means that there must be proof
that the infringement causes the harm.
     Apple argued to the district court that it was irrepa-
rably harmed by Samsung’s infringement due to damage
to its reputation as an innovator, lost market share, and
lost downstream sales. Injunction Order at *6, *11. The
district court rejected Apple’s arguments regarding irrep-
arable harm and found that Apple had not shown that a
causal nexus connected Samsung’s infringement to these
alleged injuries. Id. at *8–9, *11–16. On appeal, Apple
argues that the district court erred in a number of ways
with respect to this eBay factor. First, Apple argues that
the court should not have required Apple to prove that a
causal nexus linked Samsung’s infringement to Apple’s
harms because Apple’s proposed injunction was limited to
the infringing features alone, not the products as a whole.
Apple also argues that the court erred when it found that
Apple did not suffer irreparable harm stemming from its
8               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



sales-based losses and from harm to its reputation as an
innovator due to Samsung’s infringement. We address
each of Apple’s arguments in turn.
               1. Causal Nexus Requirement
    Apple claims that “[t]he purpose and substance of the
causal nexus requirement are necessarily satisfied in this
circumstance because there is no risk that Apple might be
‘leveraging its patent for competitive gain beyond that
which the inventive contribution and value of the patent
warrant.’” Appellant’s Br. 33 (quoting Apple, Inc. v.
Samsung Elecs. Co., 735 F.3d 1352, 1361 (Fed. Cir. 2013)
(“Apple III”) (alterations omitted)). Apple argues that our
discussion of causal nexus to date has been limited to
cases where the patentee sought a product-based injunc-
tion. See Apple III, 735 F.3d at 1352; Apple II, 695 F.3d at
1375–76; Apple, Inc. v. Samsung Elecs. Co., 678 F.3d
1314, 1324 (Fed. Cir. 2012) (“Apple I”). Apple asserts that
there is no causal nexus requirement when the patentee
is seeking, as in this case, a narrow injunction, limited to
the infringing features.
     Apple misunderstands the purpose of the causal nex-
us requirement. Although we stated in Apple II that the
causal nexus requirement “informs whether the patent-
ee’s allegations of irreparable harm are pertinent to the
injunctive relief analysis, or whether the patentee seeks
to leverage its patent for competitive gain beyond that
which the inventive contribution and value of the patent
warrant,” this statement was incomplete. Apple II, 695
F.3d at 1375. The causal nexus requirement ensures that
an injunction is only entered against a defendant on
account of a harm resulting from the defendant’s wrongful
conduct, not some other reason. For example, it ensures
that an injunction is not entered on account of “irrepara-
ble harm caused by otherwise lawful competition.” Apple
III, 735 F.3d at 1361. Whether a patentee’s irreparable
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.              9



harm stems from infringement of its patents is entirely
independent of the scope of the proposed injunction.
     And while, in the past, we have only had occasion to
require proof of causal nexus for product-based injunc-
tions, we have also rejected Apple’s argument that nar-
rowing the proposed injunction can eliminate the causal
nexus requirement. In Apple III, we explained that, while
narrowing a proposed injunction by delaying it so that the
infringer could design around the infringing features
would make it “more likely to prevent only infringing
features rather than the sale of entire products,” it did not
“show that the patentee is irreparably harmed by the
infringement.” Id. at 1363 (emphasis in original). The
same is true here. That Apple’s proposed injunction
applies only to infringing features says nothing about
whether Apple is irreparably harmed by Samsung’s
infringement. The purpose of the causal nexus require-
ment is to establish the link between the infringement
and the harm, to ensure that there is “some connection”
between the harm alleged and the infringing acts. Id. at
1364. Thus, a causal nexus linking the harm and the
infringing acts must be established regardless of whether
the injunction is sought for an entire product or is narrow-
ly limited to particular features.
    To be sure, the scope of an injunction plays a role in
determining whether that injunction is awarded. For
example, it is crucial when considering the final two
factors of the eBay test. Here, the district court did not
err by requiring Apple to satisfy the causal nexus re-
quirement to show irreparable harm.
                      2. Sales-Based Harm
    Apple argues that the district court erred in finding
that Apple did not suffer irreparable harm due to lost
market share and lost downstream sales stemming from
Samsung’s infringement. The district court noted that it
10              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



was undisputed that Apple lost market share and down-
stream sales to Samsung. Injunction Order at *11. It
was also undisputed that “Apple and Samsung compete
directly in the market for smartphones and tablets” and
that “this competition affects [Apple’s] downstream sales
because of so-called ‘ecosystem’ effects, where one compa-
ny’s customers will continue to buy that company’s prod-
ucts and recommend them to others.” Id. Moreover, the
court wrote that the record established that “the competi-
tion between Apple and Samsung was ‘fierce’” and that
“Apple was Samsung’s ‘largest smartphone competitor’ in
the U.S. market.” Id. Because “[w]here two companies
are in competition against one another, the patentee
suffers the harm—often irreparable—of being forced to
compete against products that incorporate and infringe its
own patented inventions,” id. (quoting Douglas Dynamics,
LLC v. Buyers Prods. Co., 717 F.3d 1336, 1345 (Fed. Cir.
2013)), the court found that “[t]he presence of direct
competition between Apple and Samsung in the
smartphone market weighs in favor of finding irreparable
harm,” id.
    Despite these findings, the district court found that
Apple failed to demonstrate irreparable harm due to lost
sales because it failed to show a causal nexus between the
infringement and the lost sales. That is, according to the
district court, Apple did not show that the infringing
features “drive consumer demand for Samsung’s infring-
ing products.” Id. at *13. Here, the district court erred.
    When a patentee alleges it suffered irreparable harm
stemming from lost sales solely due to a competitor’s
infringement, a finding that the competitor’s infringing
features drive consumer demand for its products satisfies
the causal nexus inquiry. In that case, the entirety of the
patentee’s alleged harm weighs in favor of injunctive
relief. Such a showing may, however, be nearly impossi-
ble from an evidentiary standpoint when the accused
devices have thousands of features, and thus thousands of
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.               11



other potential causes that must be ruled out. Nor does
the causal nexus requirement demand such a showing.
Instead, it is a flexible analysis, as befits the discretionary
nature of the four-factor test for injunctive relief. We
have explained that proving a causal nexus requires the
patentee to show “some connection” between the patented
features and the demand for the infringing products.
Apple III, 735 F.3d at 1364. 1 Thus, in a case involving
phones with hundreds of thousands of available features,
it was legal error for the district court to effectively re-
quire Apple to prove that the infringement was the sole
cause of the lost downstream sales. The district court


    1    As we explained in Apple III, “some connection”
between the patented feature and consumer demand for
the products may be shown in “a variety of ways,” includ-
ing, for example, “evidence that a patented feature is one
of several features that cause consumers to make their
purchasing decisions,” “evidence that the inclusion of a
patented feature makes a product significantly more
desirable,” and “evidence that the absence of a patented
feature would make a product significantly less desira-
ble.” Id. These examples do not delineate or set a floor on
the strength of the connection that must be shown to
establish a causal nexus; rather, they are examples of
connections that surpass the minimal connection neces-
sary to establish a causal nexus. Apple III included a
fourth example to demonstrate a connection that does not
establish a causal nexus—where consumers are only
willing “to pay a nominal amount for an infringing fea-
ture.” Id. at 1368 (using example of $10 cup holder in
$20,000 car). There is a lot of ground between the exam-
ples that satisfy the causal nexus requirement and the
example that does not satisfy this requirement. The
required minimum showing lies somewhere in the middle,
as reflected by the “some connection” language.
12              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



should have determined whether the record established
that a smartphone feature impacts customers’ purchasing
decisions. Apple III, 735 F.3d at 1364. Though the fact
that the infringing features are not the only cause of the
lost sales may well lessen the weight of any alleged irrep-
arable harm, it does not eliminate it entirely. To say
otherwise would import a categorical rule into this analy-
sis.
     The right to exclude competitors from using one’s
property rights is important. And the right to maintain
exclusivity—a hallmark and crucial guarantee of patent
rights deriving from the Constitution itself—is likewise
important. “Exclusivity is closely related to the funda-
mental nature of patents as property rights.” Douglas
Dynamics, 717 F.3d at 1345. And the need to protect this
exclusivity would certainly be at its highest when the
infringer is one’s fiercest competitor. Essentially barring
entire industries of patentees—like Apple and other
innovators of many-featured products—from taking
advantage of these fundamental rights is in direct contra-
vention of the Supreme Court’s approach in eBay. 547
U.S. at 393 (“[E]xpansive principles suggesting that
injunctive relief could not issue in a broad swath of cas-
es . . . cannot be squared with the principles of equity
adopted by Congress.”).
    The district court thus erred when it required Apple
to prove that the infringing features were the exclusive or
predominant reason why consumers bought Samsung’s
products to find irreparable harm. See Apple III, 735 F.3d
at 1364 (explaining that “[c]onsumer preferences are too
complex—and the principles of equity are too flexible” for
a patentee to have to show that patented features are the
“one and only reason for consumer demand”). Instead, the
district court should have considered whether there is
“some connection” between the patented features and the
demand for Samsung’s products. Id. That is, the district
court should have required Apple to show that the pa-
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.             13



tented features impact consumers’ decisions to purchase
the accused devices. Id. (explaining that causal nexus can
be shown with evidence that “a patented feature is one of
several features that cause consumers to make their
purchasing decisions”).
     The record here establishes that these features do in-
fluence consumers’ perceptions of and desire for these
products. The district court wrote that there was evi-
dence that Samsung valued the infringing features,
including evidence that Samsung “paid close attention to,
and tried to incorporate, certain iPhone features,” which
was “indicative of copying.” Injunction Order at *14. This
included evidence that Samsung had copied the “slide to
unlock” feature claimed in the ’721 patent, such as “inter-
nal Samsung documents showing that Samsung tried to
create unlocking designs based on the iPhone,” id. (citing
PX119 (J.A. 20197), PX121 (J.A. 20274, 20347)); testimo-
ny from a Samsung engineer about “the value of designs
for unlocking,” id. (citing Tr. at 1729:3–11 (J.A. 11735:3–
11)); and “Samsung e-mails noting that certain carriers
disapproved of the noninfringing ‘circle lock’ alternative,”
id. (citing PX181 at 5 (J.A. 21019)). The district court also
noted that the jury found that Samsung willfully in-
fringed the ’721 patent. Id. For the ’647 patent, evidence
of copying included “an internal Samsung report that
shows iPhone screens and notes the ‘[n]eed to improve
usability by providing Links for memo contents,’” id.
(citing PX146 at 37 (J.A. 20584)), and “an internal Sam-
sung document that copied a figure from the publication
of one of the ’647 patent’s inventors,” id. (citing PX107 at
52 (J.A. 20063)); see also J.A. 20003 (inventor’s publica-
tion). And for the ’172 patent, Apple presented evidence
that users criticized Samsung’s noninfringing keyboards
and word-correction designs. Injunction Order at *14
(citing PX168 at 4 (J.A. 20985), PX169 at 4 (J.A. 21006),
PX219 at 104 (J.A. 21318)); see also J.A. 10700–02 (ex-
plaining that a Samsung carrier found Samsung’s non-
14                APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



infringing word-correction method “jarring,” which Sam-
sung resolved by going to the word-correction method
described in the ’172 patent). Finally, the district court
held that Apple had shown that it too found the “slide to
unlock” feature claimed in the ’721 patent valuable to
consumers. Injunction Order at *15 (citing Tr. at 432:20–
433:18 (J.A. 10433:20–10434:18); Tr. at 600:23–601:15
(J.A. 10602:23–10603:15)); see also J.A. 21014 (Apple’s
first iPhone ad, which opened with imagery of the “slide
to unlock” feature). The district court rejected this evi-
dence as insufficient to establish the requisite causal
nexus. Injunction Order at *13–15 (citing Apple I, 678
F.3d at 1327–28; Apple III, 735 F.3d at 1367). In doing so,
the district court relied on our previous statements that
copying is not sufficient to show causal nexus:
     While the evidence that Samsung’s employees be-
     lieved it to be important to incorporate the pa-
     tented feature into Samsung’s products is
     certainly relevant to the issue of nexus between
     the patent and market harm, it is not dispositive.
     That is because the relevant inquiry focuses on
     the objective reasons as to why the patentee lost
     sales, not on the infringer’s subjective beliefs as to
     why it gained them (or would be likely to gain
     them).
Apple I, 678 F.3d at 1327–28.
     The district court was correct that evidence of copying
does not, by itself, establish a causal nexus. But that does
not make the evidence wholly irrelevant. Here, too, we
must avoid categorical rules. Where the precise question
is about consumer preferences and buying choices, the
strength and weight to be given to such evidence is to be
determined on a case-by-case basis based on what the
evidence indicates. Sometimes this evidence will have
little or no probative value, for example, if the record
contains evidence that the infringer’s belief may be at
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.            15



odds with consumer preferences. But here, Apple’s evi-
dence of copying established a further link between Ap-
ple’s and Samsung’s subjective beliefs and consumers’
perceptions, thereby strengthening a causal nexus and
irreparable harm to Apple. The dissent criticizes Apple’s
evidence of copying as “lack[ing] any connection to the
critical details that define the patented features.” Dissent
11. The district court made no such findings. Injunction
Order at *14. The district court acknowledged that Apple
presented evidence that carriers (’721 patent) and users
(’172 patent), not just Samsung, preferred and valued the
infringing features and wanted them in Samsung phones.
Id. It also acknowledged that Apple presented evidence
that carriers or users disapproved of Samsung’s alterna-
tive to the infringing features. The court failed to appre-
ciate, however, that this evidence did not just
demonstrate that Samsung valued the patented features,
but also that its carriers or users valued the features.
The district court further correctly concluded that the ’721
patent’s features are valuable to Apple’s consumers. Id.
at *15. It was legal error for the district court to reject
such strong evidence in this case because Apple presented
evidence showing that Samsung’s subjective beliefs are
indicative of consumers’ perceptions of the infringing
features. Given the strength of the evidence of copying
and Samsung’s professed belief in the importance of the
patented features as a driver of sales, and the evidence
that carriers or users also valued and preferred phones
with these features, the district court erred by disregard-
ing this evidence, which further establishes a causal
nexus and Apple’s irreparable harm.
    Furthermore, this record contained Dr. John Hauser’s
conjoint study, which established that consumers would
not have purchased a Samsung phone if it lacked the
patented features, that they valued these features, and
that they were willing to pay considerably more for a
phone that contained these features. Injunction Order at
16              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



*12; see also J.A. 20491–98 (survey results showing that
many respondents would not purchase a Samsung phone
without the infringing features); J.A. 20539 (results
showing that respondents were willing to pay more for
devices that included the infringing features). Based on
the results, Dr. Hauser concluded that “[t]he features that
were enabled by the patents at issue in this case have a
measurable impact on consumer demand for Samsung
telephones, smartphones, and tablets.” J.A. 11130. The
district court appeared to disregard the Hauser study,
writing that “[t]he weight of the evidence shows that [the
Hauser study] fails to demonstrate that the features
claimed in the ’647, ’721, and ’172 patents drive consumer
demand for Samsung’s infringing products.” Injunction
Order at *13. The district court’s decision seems to be
predicated on an incorrect understanding of the nature of
the causal nexus requirement, as discussed above.
    In short, the record establishes that the features
claimed in the ’721, ’647, and ’172 patents were important
to product sales and that customers sought these features
in the phones they purchased. While this evidence of
irreparable harm is not as strong as proof that customers
buy the infringing products only because of these particu-
lar features, it is still evidence of causal nexus for lost
sales and thus irreparable harm. Apple loses sales be-
cause Samsung products contain Apple’s patented fea-
tures. The district court therefore erred as a matter of
law when it required Apple to show that the infringing
features were the reason why consumers purchased the
accused products. Apple does not need to establish that
these features are the reason customers bought Samsung
phones instead of Apple phones—it is enough that Apple
has shown that these features were related to infringe-
ment and were important to customers when they were
examining their phone choices. On this record, applying
the correct legal standard for irreparable harm, Apple has
established irreparable harm. The strength of its evi-
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.             17



dence of irreparable harm goes to this factor’s weight
when assessing the propriety of the injunction. Apple
established that customers wanted, preferred, and would
pay extra for these features. Apple established that
Samsung believed these features were important and
copied them. The evidence establishes that Samsung’s
carriers and users wanted these features on phones. The
evidence establishes that Apple believed these features
were important to customer demand. The evidence estab-
lishes that Samsung was Apple’s biggest rival, its fiercest
competitor. It was clear error in the face of this evidence
for the district court to conclude that Apple failed to
establish “some connection” between the patented fea-
tures and demand for the infringing products. Apple did
not establish that these features were the exclusive driver
of customer demand, which certainly would have weighed
more heavily in its favor. Apple did, however, show that
“a patented feature is one of several features that cause
consumers to make their purchasing decisions.” Apple III,
735 F.3d at 1364. We conclude that this factor weighs in
favor of granting Apple’s injunction.
              B.     Inadequate Remedy at Law
    The second eBay factor is whether “remedies available
at law, such as monetary damages, are inadequate to
compensate” for the irreparable harm suffered by the
patentee. 547 U.S. at 391.
    The district court found that Apple’s sales-based loss-
es were difficult to quantify. Injunction Order at *18. In
support, the district court cited testimony by Mr. Phil
Schiller, an Apple marketing executive; testimony by
Apple’s damages expert; and its own past findings on the
subject in the context of the Apple-Samsung litigation.
Id. at *17. We agree with the district court’s analysis.
Sales lost by Apple to Samsung are difficult to quantify
due to the “ecosystem effect”—that is, the effect the sale of
a single product can have on downstream sales of accesso-
18              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



ries, computers, software applications, and future
smartphones and tablets. Id.; see also J.A. 10449–50. In
addition to the downstream sales to the individual cus-
tomer, Mr. Schiller testified that individual customers
have a “network effect,” by which they advertise Apple’s
product to their friends, family, and colleagues. J.A.
10449–50. Thus, the loss by Apple of a single smartphone
or tablet customer may have a far-reaching impact on
Apple’s future revenues. Because of its variable and
uncertain nature, this loss is very difficult to calculate.
    Despite its finding that Apple’s sales-based losses
were difficult to quantify, the district court nonetheless
found that this factor weighed against injunctive relief
based on its determination that Apple had failed to estab-
lish any irreparable harm. Injunction Order at *19.
Apple argues that if we reverse the court on that point,
this factor will also tip in its favor. We agree. Because
we find the district court’s finding that Apple did not
suffer any irreparable harm stemming from its losses of
sales was predicated on a legal error, it also erred when it
found that this factor weighs against an injunction. This
factor strongly weighs in favor of Apple because, as the
district court found, the extent of Apple’s downstream and
network effect losses are very difficult to quantify.
               C.     Balance of Hardships
    To satisfy the third eBay factor, the patentee must
show that the balance of hardships weighs in its favor.
547 U.S. at 391. This factor “assesses the relative effect of
granting or denying an injunction on the parties.” i4i, 598
F.3d at 862. Because “Apple’s proposed injunction targets
only specific features, not entire products” and contains a
30-day “sunset provision,” Injunction Order at *20–21,
and because “Samsung repeatedly told the jury that
designing around the asserted claims of the three patents
at issue would be easy and fast,” id. at *22, the district
court found that Samsung would “not face any hardship”
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.             19



from Apple’s proposed injunction, id. at *19. The court,
reasoning that “requiring a patentee to ‘compete against
its own patented invention . . . places a substantial hard-
ship’ on the patentee,” found that Apple would suffer
hardship without an injunction. Id. at *22 (quoting
Robert Bosch LLC v. Pylon Mfg. Corp., 659 F.3d 1142,
1156 (Fed. Cir. 2011)). The court therefore found that
this factor weighed in Apple’s favor. We agree. This
factor strongly favors granting Apple the relief requested.
    Samsung argues that the district court erred in find-
ing the balance of hardships favors the entry of an injunc-
tion. It argues that Apple will not suffer any hardship in
the absence of an injunction because the patented fea-
tures are minor components in a complex device. Sam-
sung argues that it and its carriers, retailers, and
customers would suffer substantial hardship if an injunc-
tion issued, particularly because the proposed injunction
would extend to unadjudicated products with software
that is “capable of implementing” the infringing features
or other features “not colorably different.” Appellees’ Br.
55 & n.14 (quoting J.A. 2698).
     The district court did not abuse its discretion in find-
ing the balance of hardships favors an injunction; to the
contrary, this factor strongly weighs in favor of an injunc-
tion. Samsung’s infringement harmed Apple by causing
lost market share and lost downstream sales and by
forcing Apple to compete against its own patented inven-
tion, which “places a substantial hardship” on a patentee,
especially here where it is undisputed that it is essential-
ly a two-horse race. Bosch, 659 F.3d at 1156. Further-
more, as the district court found, Apple’s proposed
injunction was narrowly tailored to cause no harm to
Samsung other than to deprive it of the ability to continue
to use Apple’s patented features. Injunction Order at
*21–22. The court has overseen the Apple-Samsung
litigation from the beginning and has worked extensively
with parties and their counsel. Given the court’s familiar-
20              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



ity with the infringing products, the parties, and their
history of litigation, it is best-positioned to determine the
impact of the scope of the injunction on the parties.
Furthermore, the district court presided over a trial in
which Samsung’s witnesses and counsel assured the jury
that design-arounds to the infringing features would be
“simple or already exist.” Id. at *20. And Samsung
asserted at oral argument that none of the products it
currently sells practice the ’721 patent or the ’172 patent,
and that only a single product practices the ’647 patent.
Oral     Argument        at    31:10–31:48,    available   at
http://oralarguments.cafc.uscourts.gov/default.aspx?fl=20
14-1802.mp3. As we wrote in Douglas Dynamics, when
the infringer “ha[s] a non-infringing alternative which it
could easily deliver to the market, then the balance of
hardships would suggest that [it] should halt infringe-
ment and pursue a lawful course of market conduct.” 717
F.3d at 1345. On this record, it is clear—Samsung will
suffer relatively little harm from Apple’s injunction, while
Apple is deprived of its exclusivity and forced to compete
against its own innovation usurped by its largest and
fiercest competitor.       Given the narrow feature-based
nature of the injunction, this factor strongly weighs in
favor of granting Apple this injunction.
                   D.     Public Interest
    The fourth eBay factor requires the patentee to show
that “the public interest would not be disserved by a
permanent injunction.” 547 U.S. at 391. The district
court found that the public interest “favor[s] the enforce-
ment of patent rights to promote the encouragement of
investment-based risk,” particularly where, as here, the
patentee’s proposed injunction is narrow in scope and
includes a sunset provision limiting the impact of the
injunction on consumers. Injunction Order at *22–23
(quotation marks omitted). The court also noted that “an
injunction may prompt introduction of new alternatives to
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.            21



the patented features.” Id. at *23. It therefore concluded
that the public interest factor favors Apple.
    Samsung argues that the district court erred in find-
ing the public interest weighs in favor of an injunction.
Samsung also argues that the proposed injunction, while
styled as narrow, is actually quite broad and would lead
to the removal of products from store shelves, which it
argues would harm the public interest. Samsung also
argues that the public has a strong interest in competition
and the resulting variety of product choices, and that the
cost of administering this injunction would be great.
    The district court did not abuse its discretion in find-
ing that the public interest favors an injunction. Indeed,
the public interest strongly favors an injunction. Sam-
sung is correct—the public often benefits from healthy
competition. However, the public generally does not
benefit when that competition comes at the expense of a
patentee’s investment-backed property right. To conclude
otherwise would suggest that this factor weighs against
an injunction in every case, when the opposite is generally
true. We base this conclusion not only on the Patent Act’s
statutory right to exclude, which derives from the Consti-
tution, but also on the importance of the patent system in
encouraging innovation. Injunctions are vital to this
system. As a result, the public interest nearly always
weighs in favor of protecting property rights in the ab-
sence of countervailing factors, especially when the pa-
tentee practices his inventions. “[T]he encouragement of
investment-based risk is the fundamental purpose of the
patent grant, and is based directly on the right to ex-
clude.” Sanofi-Synthelabo v. Apotex, Inc., 470 F.3d 1368,
1383 (Fed. Cir. 2006) (quotation marks omitted).
    This is not a case where the public would be deprived
of Samsung’s products. Apple does not seek to enjoin the
sale of lifesaving drugs, but to prevent Samsung from
profiting from the unauthorized use of infringing features
22              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



in its cellphones and tablets. Again, Apple seeks only a
narrow feature-based injunction commensurate in scope
with its monopoly rights. And the evidence of record is
that Samsung can effect the removal of the patented
features without recalling any products or disrupting
customer use of its products. Apple has not attempted to
expand the scope of its monopoly. Given the important
public interest in protecting patent rights, the nature of
the technology at issue, and the limited nature of the
injunction, this factor strongly favors an injunction.
                       CONCLUSION
    The district court erred when it found the first two
eBay factors weighed against an injunction. Although the
evidence may not make a strong case of irreparable harm,
Apple has satisfied the causal nexus requirement and
therefore established irreparable harm. 2 Apple has also
established that the harm it will suffer is not easily
compensable at law. Moreover, as the district court
found, the balance of hardships and public interest weigh
strongly in favor of an injunction. Given this, the district
court abused its discretion when it did not enjoin Sam-
sung’s infringement. If an injunction were not to issue in
this case, such a decision would virtually foreclose the
possibility of injunctive relief in any multifaceted, multi-
function technology. We vacate the district court’s order



     2  Because we hold that the district court erred
when it found that Apple did not suffer irreparable harm
stemming from its sales-based losses, see supra at 9–17,
and that on this record and consistent with the other
holdings of the district court, this harm is sufficient to
justify an injunction, see infra at 22, we do not reach the
issue of whether Apple also suffered irreparable reputa-
tional harm.
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.   23



denying Apple’s proposed injunction and remand for
further proceedings consistent with this opinion.
               VACATED AND REMANDED
                            COSTS
   Each party shall bear its own costs.
  United States Court of Appeals
      for the Federal Circuit
                 ______________________

   APPLE INC., A CALIFORNIA CORPORATION,
                Plaintiff-Appellant

                            v.

 SAMSUNG ELECTRONICS CO., LTD., A KOREAN
   CORPORATION, SAMSUNG ELECTRONICS
  AMERICA, INC., A NEW YORK CORPORATION,
 SAMSUNG TELECOMMUNICATIONS AMERICA,
    LLC, A DELAWARE LIMITED LIABILITY
                  COMPANY,
              Defendants-Appellees
             ______________________

                       2014-1802
                 ______________________

   Appeal from the United States District Court for the
Northern District of California in No. 5:12-cv-00630-LHK,
Judge Lucy H. Koh.
                 ______________________

REYNA, Circuit Judge, concurring.
    The Constitution bestows on Congress the power to
secure inventors’ “exclusive Right[s]” to their inventions.
U.S. Const. Art. I, § 8. The utility of this power would,
according to James Madison, “scarcely be questioned” as
the rights to inventions “belong to the inventors.” The
Federalist No. 43, p. 214 (L. Goldman ed. 2008) (J. Madi-
son). In the years since Congress first exercised this
power and enacted the first Patent Act in 1790, courts
2               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



have varied in how they have protected the right to ex-
clude, first preferring damages, then granting injunctions
routinely, and recently rigorously applying the irrepara-
ble injury factor of the four-part eBay test. The court
today correctly concludes that Apple, Inc. is entitled to a
narrow, feature-based injunction against Samsung 1
because Samsung’s infringement will likely cause Apple
to lose downstream sales. I agree with this decision and
note that it leaves open the door for obtaining an injunc-
tion in a case involving infringement of a multi-patented
device, a door that appears near shut under current law.
    I write to add that I believe Apple satisfied the irrepa-
rable injury factor based on Samsung’s infringement on
Apple’s right to exclude and based on the injury that the
infringement causes Apple’s reputation as an innovator.
There is no dispute that Samsung has infringed Apple’s
right to exclude and, absent an injunction, it will likely
continue to do so. I believe that such a finding satisfies
the irreparable harm requirement because the infringe-
ment is, in this case, “irreparable.” On reputational
injury, the roles are reversed: it is undisputed that such
an injury is irreparable; the question is whether this
injury will likely occur. As I explain below, I believe that
the record here—particularly the toe-to-toe competition
between Apple and Samsung, Apple’s reputation as an
innovator, and the importance of the patents-in-suit to
that reputation—establishes that Apple will likely suffer
irreparable harm to its reputation.




    1 I refer to Samsung Electronics Company, Ltd.;
Samsung Electronics America, Inc.; and Samsung Tele-
communications America, LLC collectively as “Samsung.”
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.              3



   I.     Injury to The Right to Exclude is an “Injury”
          That is, in this Case, “Irreparable.”
    A patentee’s rights spring forth from the Constitution,
which gives Congress the power to “secur[e] for limited
Times to . . . Inventors the exclusive Right to their respec-
tive . . . Discoveries.” U.S. Const. Art. I, § 8. Under this
grant of authority, Congress has given patentees “monop-
oly rights.” F.T.C. v. Actavis, Inc., 133 S. Ct. 2223, 2240
(2013) (Roberts, C.J., dissenting). That is, the patentee
obtains the right to invoke the “State’s power” to prevent
others from engaging in certain activities. Zenith Radio
Corp. v. Hazeltine Research, Inc., 395 U.S. 100, 135
(1969). Those activities include “making, using, offering
for sale, or selling the invention throughout the United
States or importing the invention into the United States,”
and if the invention is a process, “using, offering for sale
or selling throughout the United States, or importing into
the United States, products made by that process.” 35
U.S.C. § 154(a)(1).
    These monopoly rights do not necessarily entitle a pa-
tentee to injunctive relief. At least as far back as the 17th
century, courts have required a showing of “irreparable”
injury before granting injunctive relief. See Laycock,
Douglas, Death of the Irreparable Injury Rule, 103 Harv.
L. Rev. 687, 699 (1990) (“Laycock”). After Congress
passed the first Patent Act in 1790 up until 1819, Ameri-
can courts generally found that the patent statutes pro-
vided damages as the remedy for patent infringement,
meaning that infringement of patent rights did not consti-
tute an irreparable injury. See Root v. Lake Shore & M.S.
Ry. Co., 105 U.S. 189, 192 (1881); Frankfurter, Felix, The
Business of the Supreme Court of the United States — A
Study in the Federal Judicial System, 39 Harv. L. Rev.
587, 616–17 (1926). In 1819, Congress specifically grant-
ed courts the authority to grant injunctions in cases
involving patent infringement. Root, 105 U.S. at 192.
From this point until the 20th century, courts granted
4               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



injunctions in patent cases where the defendant was
shown to be likely to continue to infringe. Robinson,
William C., The Law of Patents for Useful Inventions, §
1088 (1890); Lipscomb, Ernest Bainbridge, III, Walker on
Patents, § 25:33 (1988). In the early 20th century, courts
went further, holding that the default rule was that
monetary damages were insufficient to compensate for
infringement on the right to exclude. E.g., Am. Code Co.
v. Bensinger, 282 F. 829, 834 (2d Cir. 1922) (“In cases of
infringement of copyright, an injunction has always been
recognized as a proper remedy, because of the inadequacy
of the legal remedy.”) Our court followed suit, holding
that where “validity and continuing infringement have
been clearly established,” irreparable injury is presumed.
Smith Intern., Inc. v Hughes Tool Co., 718 F.2d 1573,
1581 (Fed. Cir. 1983). We eventually created a default
rule that an injunction would issue when infringement
has been established, absent a “sound” reason for denying
it. Richardson v. Suzuki Motor Co., 868 F.2d 1226, 1246–
47 (Fed. Cir. 1989), cert. denied, 493 U.S. 853 (1989).
    In eBay Inc. v. MercExchange, L.L.C., the Supreme
Court rejected that default rule, holding that a plaintiff
seeking a permanent injunction must satisfy the four-
factor test historically employed by courts of equity,
including establishing irreparable injury. 547 U.S. 388,
391, 393 (2008). Though we read eBay to overrule our
presumption of irreparable injury, we cautioned that
courts should not necessarily “ignore the fundamental
nature of patents as property rights granting the owner
the right to exclude.” Robert Bosch LLC v. Pylon Mfg.
Corp., 659 F.3d 1142, 1149 (Fed Cir. 2011). Yet our
recent cases have done precisely that, ignoring the right
to exclude in determining whether to issue an injunction.
Indeed, our opinions in the most recent cases between
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.             5



Apple and Samsung do not even mention the right to
exclude as a possible basis for injunctive relief. 2
     I believe that this recent trend extends eBay too far.
Infringement on the right to exclude is, in my view, an
“injury” that is sometimes irreparable. An “injury” is not
limited to tangible violations but rather encompasses
“violation[s] of another's legal right, for which the law
provides a remedy; a wrong or injustice.” Injury, Black's
Law Dictionary (10th ed. 2014) (emphasis added). Courts
have routinely granted injunctions when constitutional
rights are at issue. 11A Charles Alan Wright et al. Fed-
eral Practice & Procedure § 3942 (3d ed.). Nor is this
approach limited to rights derived from the Constitu-
tion—courts have granted injunctions against private
parties based on various statutorily-granted rights. See,
e.g., E.E.O.C. v. Cosmair, Inc., L'Oreal Hair Care Div.,
821 F.2d 1085, 1090 (5th Cir. 1987) (employment discrim-
ination); Park Vill. Apartment Tenants Ass’n v. Mortimer
Howard Trust, 636 F.3d 1150, 1152 (9th Cir. 2011) (statu-
tory housing rights); Armstrong v. Schwarzenegger, 622
F.3d 1058 (9th Cir. 2010) (ADA rights).
    There is no reason to treat patent rights differently.
As the majority aptly puts it, the right to exclude is
“important.” Maj. Op. at 12. The patentee earned this
right by disclosing a useful invention to the public. See 35
U.S.C. §§ 101, 112. Madison recognized the balance
between the right to exclude and the benefit extended to
society by the disclosure included in a patent as a “public
good.” The Federalist No. 43, p. 214 (L. Goldman ed.
2008) (J. Madison). When courts do not force the public to


   2    See Apple Inc. v. Samsung Elecs. Co., 678 F.3d
1314 (Fed. Cir. 2012) (“Apple I”); Apple Inc. v. Samsung
Elecs. Co., 695 F.3d 1370 (Fed. Cir. 2012) (“Apple II”);
Apple Inc. v. Samsung Elecs. Co., 735 F.3d 1352 (Fed. Cir.
2013) (“Apple III”).
6                APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



hold up its end of the bargain they inhibit rather than
“promote” the “progress of the useful arts.” U.S. Const.
Art. I, § 8. Indeed, Chief Justice Roberts’s concurrence in
eBay, discussed in more detail below, implicitly acknowl-
edges that infringement on the right to exclude is an
injury for which an injunction can be granted. eBay, 547
U.S. at 395.
     Such an injury can be irreparable. In this context,
“irreparable” does not mean that the injury cannot be
remedied at all. If that were the case, the plaintiff would
not have standing to sue. Lujan v. Defenders of Wildlife,
504 U.S. 555, 561 (1992). What makes an injury “irrepa-
rable” is that legal damages, i.e., monetary relief, cannot
remedy the harm. See Laycock at 694. Courts have
provided several reasons why this may be the case, in-
cluding instances in which injury is repeated or threat-
ened, substitutes are difficult to obtain, or damages are
difficult to measure. See, e.g., Mark P. Gergen et al., The
Supreme Court’s Accidental Revolution? The Test for
Permanent Injunctions, 112 Colum. L. Rev. 203, 237
(2012) (“Gergen”).
    The last of these concerns was the reason courts tra-
ditionally found infringement of intellectual property
rights to be irreparable. As Chief Justice Roberts ex-
plained in his eBay concurrence:
    From at least the early 19th century, courts have
    granted injunctive relief upon a finding of in-
    fringement in the vast majority of patent cases.
    This “long tradition of equity practice” is not sur-
    prising, given the difficulty of protecting a right to
    exclude through monetary remedies that allow an
    infringer to use an invention against the patent-
    ee’s wishes—a difficulty that often implicates the
    first two factors of the traditional four-factor test.
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.            7



eBay, 547 U.S. at 395. As Justice Kennedy explained,
however, this traditional model does not always apply,
particularly when the patentee is a non-practicing entity:
   An industry has developed in which firms use pa-
   tents not as a basis for producing and selling
   goods but, instead, primarily for obtaining licens-
   ing fees. For these firms, an injunction, and the
   potentially serious sanctions arising from its vio-
   lation, can be employed as a bargaining tool to
   charge exorbitant fees to companies that seek to
   buy licenses to practice the patent. When the pa-
   tented invention is but a small component of the
   product the companies seek to produce and the
   threat of an injunction is employed simply for un-
   due leverage in negotiations, legal damages may
   well be sufficient to compensate for the infringe-
   ment and an injunction may not serve the public
   interest.
Id. at 396–97. Where the patentee is an entity that uses
patents primarily to obtain licensing fees, its business
objectives are premised on monetary relief being sufficient
to compensate for infringement. The relationship be-
tween the patentee and the infringer is also relatively
simple, making damages relatively straightforward to
calculate.
    That is not the case here. Apple’s business objectives
encompass far more than obtaining licensing fees. And
the relationship between Apple and Samsung is complex.
Apple and Samsung “fiercely” compete in the mobile
device hardware and software markets. The device
hardware market includes multiple competitors, but
Apple and Samsung stand alone as the market leaders.
They also compete in the device operating system market,
where Apple’s “iOS” operating system competes with
Google, Inc.’s “Android” operating system.
8               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



    Apple effectively created the smartphone market
when it launched its iPhone in June 2007. According to
Phil Schiller, the head of Apple’s Worldwide Marketing
Group, Apple sold 300,000 units during its first quarter.
J.A. 10447. This figure rose to over 10 million at the start
of 2009. Id. According to Mr. Schiller, what distin-
guished Apple’s phones was that they were controlled
completely by software (as opposed to buttons on the
phone), which allowed users to access media and the
Internet. J.A. 10449. Apple released its tablet, the iPad,
in 2010, and it too enjoyed great success. J.A. 10451.
When Samsung entered the smartphone market, releas-
ing its own line of “Galaxy” smartphones, Apple took
notice. To Mr. Schiller, Samsung’s smartphones seemed
like an “attempt to copy the iPhone.” J.A. 10470. By
August of 2011, when Apple was releasing version 5 of
iOS, the relationship between Apple and Samsung, in Mr.
Schiller’s words, “wasn’t a good relationship.” J.A. 10473.
Apple and Samsung had created an “extremely competi-
tive environment.” J.A. 10473. Apple and Samsung were
at the time of trial, according to Mr. Schiller, “head-to-
head” competitors in a variety of retail markets for
smartphones and tablets. J.A. 10469.
     From Samsung’s perspective, the competition was
equally vigorous. In its internal marketing documents,
Samsung listed one of its 2010 objectives in market repu-
tation terms to “overcome fast follower status and estab-
lish Samsung as a challenger to Apple.” J.A. 11703. In
Samsung’s view, the marketplace mainly involved compe-
tition between devices that run Apple’s iOS and devices
that run Google’s Android. J.A. 11708. Indeed, Sam-
sung’s counsel asserted in its opening statement that
“Apple has sued . . . the biggest user of Google’s Android
software and the most successful manufacturer of Android
phones, Samsung, to try to prevent it from selling phones
with that leading Android software . . . .” J.A. 10361.
Samsung, however, also attempted to distinguish its
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.           9



devices from Apple’s through hardware advancements,
including, for example, larger screen sizes, near field
communications, and allowing for the use of a stylus. J.A.
11710. Despite this fierce, toe-to-toe competition, Apple
and Samsung are also business partners. Samsung
supplies about 25 percent of the components in the iPh-
one. J.A. 11712.
    This evidence demonstrates that the relationship be-
tween Apple and Samsung is dramatically different from
a non-practicing entity and an infringer. Apple’s business
objective is not merely to obtain licensing fees from Sam-
sung. Rather, it seeks to firmly establish and grow its
market share in the rapidly evolving smartphone and
tablet market. In a marketplace this complex, it is diffi-
cult, if not impossible, for a court to accurately value
Apple’s right to exclude. How, for example, does Apple
value its rights to exclude relative to other means for
competing against Samsung? What effect does the in-
fringement have on how consumers view subsequently
released products? How would Apple’s existing business
relationship with Samsung factor into this valuation?
Courts are not equipped to answer these questions.
    In sum, a jury found that Samsung infringed Apple’s
right to exclude. Apple has been injured and, absent an
injunction, that injury will likely continue. eBay and its
progeny explain that such a finding is not necessarily
sufficient to meet the irreparable harm requirement. But
that does not mean we should ignore this injury. In view
of Apple’s and Samsung’s unique competition, I would
conclude a court cannot accurately determine the extent
of Apple’s injury, and thus, I would find that Samsung’s
infringement of Apple’s patent rights irreparably injures
Apple.
10                APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



     II.   Apple has shown that Samsung’s Infringement
           will Likely Injure Apple’s Reputation as an In-
           novator.
    Having determined that Apple established irreparable
injury via lost downstream sales, the majority opinion
does not reach the issue of reputational injury. Maj. Op.
at 22, n.2. I would reach this issue and hold, in the alter-
native, that Samsung’s continued infringement would
irreparably injure Apple’s reputation as an innovator.
    To establish any irreparable injury, this court has
generally required the plaintiff to establish a “causal
nexus”: “[t]o show irreparable harm, it is necessary to
show that the infringement caused harm in the first
place.” Apple I, 678 F.3d at 1324 (emphasis added). The
problem with this formulation is that it necessarily focus-
es on the past, and in doing so effectively requires the
plaintiff to show a near certainty of irreparable harm and
not a “likelihood” of harm. As the Supreme Court ex-
plained more than sixty years ago, injunctive relief ad-
dresses future harms and the past is only relevant as an
indicator of the future:
     The sole function of an action for injunction is to
     forestall future violations. . . . All it takes to make
     the cause of action for relief by injunction is a real
     threat of future violation or a contemporary viola-
     tion of a nature likely to continue or recur. . . . In
     a forward-looking action such as this, an examina-
     tion of ‘a great amount of archeology' is justified
     only when it illuminates or explains the present
     and predicts the shape of things to come.
United States v. Or. State Med. Soc., 343 U.S. 326, 333
(1952) (Jackson, J.). In Winter v. Natural Resources
Defense Council, Inc., the Court further explained that a
plaintiff must show that irreparable injury is “likely” in
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.            11



the absence of an injunction. 555 U.S. 7, 22 (2008). 3
While “likely” is more demanding than “possible,” it does
not require a showing that the injury is certain or nearly
certain. Small v. Avanti Health Sys., LLC, 661 F.3d 1180,
1191 (9th Cir. 2011). Rather, the plaintiff must show that
irreparable injury is more likely than not to occur absent
an injunction. Cf. Trebro Mfg., Inc. v. Firefly Equip., LLC,
748 F.3d 1159, 1166 (Fed. Cir. 2014) (explaining that
“likely” success on the merits means “more likely than
not”).
     A plaintiff can meet this burden by showing that it
will likely suffer an injury and, separately, satisfy the
nexus requirement by showing that this injury is causally
linked to the infringement. The plaintiff’s evidence often
comes in the form of empirical data showing both a past
injury and a causal link between that injury and the past
infringement. 4 The district court faults Apple for not
following this methodology here, finding significant that
Apple’s data do not empirically show that its reputation
had been harmed. Apple Inc. v. Samsung Elecs. Co. Ltd.,
No. 12-CV00630, 2014 WL 7496140, at *15–17 (N.D. Cal.
Aug. 27, 2014). But our case law does not require a
plaintiff to follow this methodology. A plaintiff can in-
stead rely on a theory of causation to show that it will be
irreparably harmed. In other words, the plaintiff can
show both the presence of irreparable injury and the
causal nexus by establishing circumstances under which



   3    Though Winter addressed the test in the context of
a preliminary injunction, the substantive analysis for
irreparable harm factor is the same for a permanent
injunction. Amoco Prod. Co. v. Village of Gambell, AK,
480 U.S. 531, 546 n.12 (1987).
    4   As noted, an injunction is a form of forward-
looking relief. Thus, arguments based on past harm
implicitly assume that circumstances will not change.
12              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



infringement would more likely than not cause the
claimed injury. This was how the patentee proved irrepa-
rable injury in Douglas Dynamics, LLC v. Buyer Products
Co., 717 F.3d 1336 (Fed. Cir. 2013).
    In that case, the patentee, Douglas Dynamics, and in-
fringer, Buyer Products, were competitors in the market
for snowplow assemblies often mounted on the front of a
truck. Id. at 1339. Douglas Dynamics had about sixty
percent of the market share and was recognized as being
an innovator. Id. The patented features were recogniza-
ble by consumers, thus influencing how consumers viewed
Douglas Dynamics. The patented features included a
mounting frame that did not extend beyond the vehicle’s
bumper, reducing the likelihood of inadvertent damage
and allowing drivers to “remove heavy portions of the
snowplow assembly from the vehicle when the plow is not
in use, thus reducing stress on the vehicle’s suspension.”
Id.
    We held that the district court abused its discretion in
finding that Douglas did not meet the irreparable injury
factor. Id. In particular, we held—without any empirical
evidence of injury or causal nexus—that the district
court’s finding that Douglas Dynamics’s reputation would
not be injured by the infringement was clearly erroneous.
Id. at 1344. Infringement, we explained, can harm a
company’s reputation, “particularly its perception in the
marketplace by customers, dealers, and distributors.” Id.
Douglas Dynamics’s reputation would “certainly be dam-
aged” if customers found the patented features appearing
in a competitor’s product. Id. at 1344–45. Douglas Dy-
namics would be perceived as less of an innovator because
its competitors could incorporate the patented features
without noting that they belonged to Douglas Dynamics.
Id. at 1344. Exclusivity, we further explained, is “an
intangible asset that is part of a company’s reputation.”
Id. at 1345. “Where two companies are in competition
against one another, the patentee suffers the harm—often
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.            13



irreparable—of being forced to compete against products
that incorporate and infringe its own patented inven-
tions.” Id. Where the patentee and the infringer are toe-
to-toe competitors in a two-competitor marketplace, the
loss of reputation caused by infringement marks a gain of
reputation of the infringer as an innovator.
    On the record before us, I would hold that Apple has
shown that it will likely suffer irreparable injury. First,
Apple and Samsung are direct competitors in the
smartphone and tablet market. We have repeatedly held
after eBay that competition between the patentee and the
infringer, particularly direct competition, strongly mili-
tates toward a finding of irreparable harm. As noted
above, in Douglas Dynamics, we focused on the competi-
tion between the patentee and the infringer. Id. In
Presidio Components, we explained that direct competi-
tion is “one factor suggesting strongly the potential for
irreparable harm.” Presidio Components Inc. v. Am. Tech.
Ceramics Corp., 702 F.3d 1351, 1363 (Fed. Cir. 2012)
(internal citation omitted). And in Trebo Manufacturing,
we explained that because the record showed that the
patentee and the infringer were direct competitors, it
“strongly show[ed] a probability for irreparable harm.”
Trebo Mfg. v. Firefly Equipment, 748 F.3d 1159, 1171
(Fed. Cir. 2014). This factor is especially strong here
because Apple and Samsung are toe-to-toe competitors in
a unique marketplace.
     Second, like Douglas Dynamics, Apple’s reputation as
an innovator is critical to its ability to compete against
Samsung. As the district court explained, Apple has a
strong reputation as being an innovator in the
smartphone and tablet market. See 2014 WL 7496140 at
*15. Samsung appears to concede this point, going so far
as to refer to Apple as an “amazing innovative company”
in its opening statement at trial. J.A. 10361. Mr. Schiller
testified that Apple prizes this reputation, explaining that
the “very DNA” of Apple is that it is an innovator that
14              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



“creates unique differentiations in [its] products that
customers value.” J.A. 10453. He further explained that
Apple’s marketing strategy was “The Product as Hero.”
J.A. 10466. That is, the features of the product are the
emphasis of the marketing, not, e.g., price, customer
service, etc. See id.
    The patents at issue here cover the types of features
that made Apple’s products the “hero.” These patents
cover features that consumers regularly interact with,
thereby influencing how consumers perceive Apple, not
latent features which consumers may not be aware of.
Douglas Dynamics, 717 F.3d at 1339. For example, U.S.
Patent No. 5,946,647 discloses software that allows a user
to take action with respect to a detected phone number by
dialing a phone number without exiting one program and
entering another. ’647 patent col. 5 ll. 38–50. These
features were so important that Apple included it across
all of its products, including iPhones and iPads. J.A.
10794. U.S. Patent No. 8,046,721 discloses a device that a
user unlocks with gestures. ’721 patent col. 8 ll. 49–55.
This feature was one of the features that Apple marketed
in its first ads. It represented a “great beginning” that
customers often utilize. J.A. 10433–34, 21014, 10602–04.
Similarly, U.S. Patent No. 8,074,172 discloses a method
for automatically correcting spelling errors as a user types
words using a touchscreen device, a boon for those who
would accept a misspelled word in favor of looking up its
correct spelling. ’172 patent col. 9 ll. 11–27.
     In Douglas Dynamics, we explained that when cus-
tomers find the patentee’s innovations appearing in a
competitor’s products, the patentee’s reputation as an
innovator will “certainly” be damaged. Douglas Dynam-
ics, 717 F.3d at 1344–45. That reasoning applies with
great force here. Though the parties dispute whether
Apple practices every aspect of the claimed inventions, it
is essentially undisputed that Apple’s products include
similar features that compete with the patented features,
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.            15



as practiced in Samsung’s products. The presence of the
patented features in the products of Apple’s chief competi-
tor communicates a message that Apple’s corresponding
features are commonplace, not innovative. Samsung’s
infringement thus neutralizes the beneficial impact that
Apple’s corresponding features have in the mind of the
consumer. This injury is amplified here because of the
toe-to-toe competition between Apple and Samsung. In
such a market, even otherwise minor differences between
competitors are magnified as each competitor attempts to
gain some advantage over the other, such as the percep-
tion that one is a greater innovator than the other.
    Apple’s reputational injury is all the more important
here because of the nature of Apple’s reputation, i.e., one
of an innovator (as opposed to, e.g., a producer of low-cost
goods). Consumers in the smartphone and tablet market
seek out innovative features and are willing to pay a
premium for them. Sometimes consumers in this market
will even prioritize innovation over utility. A reputation
as an innovator creates excitement for product launches
and engenders brand loyalty. Samsung recognized the
importance of such a reputation and set its sights not on
developing more useful products, but rather to overcome
the perception that it was a “fast follower.” Apple, 2014
WL 7496140, at *8.
    Samsung argues that some or all of the patented fea-
tures not being exclusive to Apple “defeats any claim of
reputational harm.” Appellee Br. 38. Apple appears to
concede that it has license agreements with Nokia and
HTC. 5 Appellant Br. 46. Apple also appears to have
license agreements with Microsoft and IBM, but Samsung
did not rely on these licenses before the district court.


   5   All license agreements are described in general
terms because aspects of these agreements are confiden-
tial.
16               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



2014 WL 7496140 at *33, n.7. A patentee’s willingness to
license can militate against a finding of irreparable harm,
but it does not foreclose such a finding. Acumed LLC v.
Stryker Corp., 551 F.3d 1323, 1328 (Fed. Cir. 2008) (“A
plaintiff’s past willingness to license its patent is not
sufficient per se to establish a lack of irreparable harm if
a new infringer were added.”) (citing eBay, 547 U.S. at
393). In the context of reputational injury, if patented
features appear in products other than the infringer’s
products, the marginal impact of the infringer’s use of
those features may be minimized. The licensed use of
patented features is sufficient to make those features
appear commonplace, and thus the infringer’s use of those
features has little or no impact. This reasoning does not
apply here because there is no evidence that any of the
licensees practiced any of the patented features. Sam-
sung counters that it is Apple’s burden to produce evi-
dence tending to prove the negative, i.e., to produce
“evidence that Microsoft and HTC cannot and do not use
the patented features.” Appellee Br. 38. Samsung’s
argument misunderstands the burden applicable in this
case. In requesting a permanent injunction, Apple of
course bears the burden of production. Robert Bosch, 659
F.3d at 1154. Apple met this burden with the evidence
cited above—particularly, the unique, direct, and fierce
competition between the parties, Apple’s reputation as an
innovator, and the importance of the patented features to
that reputation. If Samsung seeks to rebut this evidence
with instances of the use of the patented features by other
parties, it was Samsung’s burden to show that this oc-
curred. To hold otherwise would mean that proof of a lack
of licensing activity is a prerequisite to injunctive relief, a
position the Supreme Court rejected in eBay. 547 U.S. at
393. 6



     6   The Dissent incorrectly asserts that requiring
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.           17



     Nor does the presence of the licensing agreements in-
dicate that Apple considered monetary remedies sufficient
to compensate it for Samsung’s infringement. As the
district court found, the Nokia and HTC licenses are
litigation settlements. 2014 WL 7496140 at *33. Though
these agreements may allow for some form of monetary
compensation, they have a fundamentally non-monetary
undergirding—the end of a litigation between the parties.
In addition, the licenses themselves indicate a strong
desire on the part of Apple to carefully guard its own user
experience. The HTC license excluded products that were
“clones” of Apple’s products, and the license to Nokia only
applied for a “standstill” period. Id. Most notably, the
licensed companies are not Apple’s chief competitor.
Thus, even if the licenses indicate a willingness to accept
monetary compensation from Nokia and HTC, they would
not show that monetary compensation is sufficient in this
case. As we explained in Acumed, the “identity of the past
licensees, the experience in the market since the licenses
were granted, and the identity of the new infringer” all
affect whether monetary damages are sufficient to com-
pensate for infringement. 551 F.3d at 1328.
    Samsung also argues that a reliance on the factors
described in Douglas Dynamics would create a “per se”
rule of the sort that the Supreme Court rejected in eBay.
Appellee Br. 30. Indeed, a theme that runs through both
parties’ briefing is that the other side’s reasoning would
impermissibly create a per se rule. Both sides are of
course correct that eBay rejected this court’s “categorical



Samsung to provide evidence of instances of the use of the
patented features by parties other than Samsung “arbi-
trarily shift[s] the burden of proof to Samsung.” Dissent
at 3–4 n.1. The burden of proof, of course, remains on
Apple. But Apple does not have to prove a negative to
carry that burden.
18               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



grant” of injunctions absent exceptional circumstances.
546 U.S. at 394. But relying on factors from past cases to
determine whether a patentee will likely suffer irrepara-
ble harm is not the creation of a per se rule; it is the
application of stare decisis. As Justice Holmes famously
stated, “a page of history is worth a volume of logic.” N.Y.
Trust Co. v. Eisner, 256 U.S. 345, 349 (1921) (quoted in
eBay, 547 U.S. at 395 (Roberts, C.J., concurring)).
                      III. CONCLUSION
    I would hold that Samsung’s infringement amounted
to an irreparable injury to Apple’s right to exclude. That
injury is sufficient, based on the facts of this case, to grant
an injunction. Apple also has shown that Samsung’s
infringement will likely injure its reputation as an inno-
vator in the fiercely competitive smartphone and tablet
market.
  United States Court of Appeals
       for the Federal Circuit
                 ______________________

   APPLE INC., A CALIFORNIA CORPORATION,
                Plaintiff-Appellant

                            v.

 SAMSUNG ELECTRONICS CO., LTD., A KOREAN
   CORPORATION, SAMSUNG ELECTRONICS
  AMERICA, INC., A NEW YORK CORPORATION,
 SAMSUNG TELECOMMUNICATIONS AMERICA,
    LLC, A DELAWARE LIMITED LIABILITY
                  COMPANY,
              Defendants-Appellees
             ______________________

                       2014-1802
                 ______________________

   Appeal from the United States District Court for the
Northern District of California in No. 5:12-cv-00630-LHK,
Judge Lucy H. Koh.
                 ______________________
PROST, Chief Judge, dissenting.
    This is not a close case. One of the Apple patents at
issue covers a spelling correction feature not used by
Apple. Two other patents relate to minor features (two
out of many thousands) in Apple’s iPhone—linking a
phone number in a document to a dialer, and unlocking
the screen. Apple alleged that it would suffer irreparable
harm from lost sales because of Samsung’s patent in-
fringement. For support, Apple relied on a consumer
survey as direct evidence, and its allegations of “copying”
2               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



as circumstantial evidence. The district court rejected
both evidentiary bases. On the record of this case, show-
ing clear error in the district court’s factual findings is
daunting, if not impossible. Not surprisingly, Apple
principally presses a novel legal theory in this appeal:
that the narrowness of its injunction request eliminated
its burden to show nexus between its alleged irreparable
harm and Samsung’s patent infringement. The majority
correctly rejects this theory and the case should have
ended there.
    So why doesn’t it? Because the majority finds legal
error by the district court where none exists. Then, under
the guise of the purported “legal error,” the majority
reverses without deference the district court’s rejection of
Apple’s survey evidence, never mentioning that the sur-
vey was rejected by the district court because Samsung’s
serious challenges to its techniques and conclusions were
unrebutted by Apple. The majority further relies on
“evidence,” found nowhere in the record, that carriers or
users preferred having the patented features on Sam-
sung’s phones. It also concludes—contrary to our case
law—that Apple’s alleged evidence of “copying” is suffi-
cient to show nexus to Apple’s alleged lost-sales. Because
the majority here reaches a result that comports with
neither existing law nor the record in this case, I must
respectfully dissent.
                              A
    Injunctions in patent cases, as in other areas of law,
require evaluating the traditional four factors, including
irreparable harm. Following eBay Inc. v. MercExchange,
L.L.C., 547 U.S. 388 (2006), when the infringing feature is
but one of several components of the accused product, our
precedent has clearly and consistently required patentees
requesting injunctions to establish a nexus between the
alleged irreparable harm and the patent infringement.
This nexus showing is, of course, an indispensable pre-
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.               3



requisite in a case such as this, where, we are told, the
infringed features are merely three of potentially hun-
dreds of thousands of patented features in a single prod-
uct. Requiring a showing of nexus is necessary to prevent
undue leverage wielded by patents on minor features.
                               B
    Turning to the case, the majority’s first error is its de-
termination that the district court’s analysis was legally
erroneous. Specifically, the majority states that, regard-
ing Apple’s alleged irreparable harm from lost sales, “it
was legal error for the district court to effectively require
Apple to prove that the infringement was the sole cause of
the lost downstream sales.” Majority Op. at 11; see also
id. at 12, 16. But the majority quotes nothing from the
district court’s opinion to show there is such an error.
And for good reason: there is nothing. Hence, there is no
error.
    The words “sole” and “predominant” are not even pre-
sent in the district court’s opinion. 1 There is simply



    1   The district court used the words “exclusivity” and
“exclusively,” but only in the context of rejecting Apple’s
contention of irreparable reputational harm. See, e.g.,
Apple Inc. v. Samsung Elecs. Co., No. 12-CV-00630-LHK,
2014 WL 7496140, at *11 (N.D. Cal. Aug. 27, 2014) (“In-
junction Order”). And while the majority declines to
reach the reputational harm issue, the concurrence does
not. Here, the district court found that Apple’s licenses to
other competitors were fatal to its claim that it had a
“reputation for exclusivity” over the patented features.
Id. The concurrence simply disregards this finding.
Instead, the concurrence faults Samsung for failing to
show evidence “that any of the licensees practiced any of
the patented features” and states that Apple only “bears
the burden of production,” after which the burden shifts to
4                APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



nothing in the district court’s opinion that explicitly or
implicitly required Apple to show that the patented
features were the “sole,” “predominant,” or “exclusive”
reasons for purchasing Samsung’s products. Neverthe-
less, the majority concludes that the district court’s rejec-
tion of Apple’s direct evidence—the consumer survey and
testimony by its expert, Dr. Hauser—“seems to be predi-
cated on an incorrect understanding of the nature of the
causal nexus requirement, as discussed above,” i.e., the
so-called “legal error” by the district court. Id. at 14.
    In reality, however, the district court simply weighed
the evidence and found it lacking: “[t]he weight of the
evidence shows that Apple’s conjoint study fails to demon-
strate that the features claimed in the ’647, ’721, and ’172
patents drive consumer demand for Samsung’s infringing
products.” Injunction Order at *13. The district court
reasoned that Apple made “only cursory arguments”
about Dr. Hauser’s survey, while in contrast, Samsung
challenged its myriad deficiencies including that the
survey “omitted the major factors and major drivers of
sales,” “overstated the scope of the claimed features and
improperly included noninfringing alternatives,” and
“produced nonsensical results, such as the conclusion that
the patented word correction feature (corresponding to the
’172 patent) was worth about $102 on a phone that cost
$149.” Id. at *12–13. The district court therefore found
that Apple “d[id] not rebut Samsung’s critiques of Dr.



Samsung. Concurrence at 16. But the party requesting
injunction bears more than the “burden of production;” it
bears the “burden of proving irreparable harm,” a burden
which Apple failed to meet. See Robert Bosch LLC v.
Pylon Mfg. Corp., 659 F.3d 1142, 1154 (Fed. Cir. 2011).
Apple’s failure of proof cannot be excused by disregarding
the district court’s factual findings and arbitrarily shifting
the burden of proof to Samsung.
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.              5



Hauser’s techniques or show that Apple’s conjoint study
in this case establishe[d] a causal nexus.” Id. at *13.
    In making these factual findings, the district court fol-
lowed our case law faithfully. Nothing in the district
court’s opinion suggests that it deviated from our prece-
dent. Rather, it is the majority that deviates from our
precedent by repeating as a mantra the phrase “some
connection” in Apple Inc. v. Samsung Electronics Co., 735
F.3d 1352 (Fed. Cir. 2013) (“Apple III”) detached from the
causal nexus standard explained in our prior cases. See
Majority Op. at 9, 10, 11 n.1, 12, 17. The phrase “some
connection” was not made in a vacuum, but instead in the
context of our prior decisions, which goes ignored by the
majority here.
    Specifically, in Apple II, we explained that the connec-
tion between harm and infringement must be more than
“insubstantial:”
    It is not enough for the patentee to establish some
    insubstantial connection between the alleged
    harm and the infringement and check the causal
    nexus requirement off the list. The patentee must
    rather show that the infringing feature drives
    consumer demand for the accused product.
Apple Inc. v. Samsung Elecs. Co., 695 F.3d 1370, 1375
(Fed. Cir. 2012) (“Apple II”) (emphasis added). And in
Apple III, we explained that the requisite connection
might be met by evidence showing that the patented
feature is a “significant” driver of demand:
    There might be a variety of ways to make this re-
    quired showing, for example, with evidence that a
    patented feature is one of several features that
    cause consumers to make their purchasing deci-
    sions. It might also be shown with evidence that
    the inclusion of a patented feature makes a prod-
    uct significantly more desirable. Conversely, it
6               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



    might be shown with evidence that the absence of
    a patented feature would make a product signifi-
    cantly less desirable.
Apple III, 695 F.3d at 1364 (emphasis added).
     The majority simply dismisses these examples from
Apple III on grounds that they “do not delineate or set a
floor on the strength of the connection that must be shown
to establish a causal nexus” but instead are “examples of
connections that surpass the minimal connection neces-
sary.” Majority Op. at 11, n.1. But divorcing Apple III’s
“some connection” language from the examples directly
following those words morphs our decision into something
it was not. And the majority’s attempt to sidestep that
language by relying on Apple III’s cup holder example
(illustrating an insufficient connection) fares no better.
Id. In this case, Apple’s evidence fell far short of even the
meager cup holder example, as Apple failed to offer any
defensible evidence on consumers’ willingness to pay even
a nominal premium for the patented features over non-
infringing alternatives. See Injunction Order at *13
(finding that Apple “d[id] not rebut Samsung’s critiques of
Dr. Hauser’s techniques or show that Apple’s conjoint
study in this case establishes a causal nexus.”).
    Perhaps recognizing its error, the majority reissued
its opinion in this case to remove the implication that
even an insignificant connection might be enough to
satisfy the causal nexus requirement. 2 While this change



    2   The majority’s original opinion stated that: “Ap-
ple did not establish that that [sic] these features were
the exclusive or significant driver of customer demand,
which certainly would have weighed more heavily in its
favor.” Apple Inc. v. Samsung Elecs. Co., 801 F.3d 1352,
1363 (Fed. Cir. 2015), vacated, Order (Fed. Cir. Dec. 16,
2015) (emphasis added). The majority’s reissued opinion
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.              7



is a more accurate reflection of our law, it does not obviate
the central problem with the majority’s conclusion in this
case. As we stated in Apple III, “[t]he question becomes
one of degree, to be evaluated by the district court.” Apple
III, 695 F.3d at 1368. Here, the district court weighed the
evidence and found it lacking. Injunction Order at *13
(“[T]he weight of the evidence shows that Apple’s conjoint
study fails to demonstrate that the features claimed in
the ’647, ’721, and ’172 patents drive consumer demand
for Samsung’s infringing products.”). The majority identi-
fies no basis for overturning this finding with its conclu-
sion—unsupported by the record—that “Apple did,
however, show that ‘a patented feature is one of several
features that cause consumers to make their purchasing
decisions.’” Majority Op. at 17 (quoting Apple III, 735
F.3d at 1364).
                               C
    Hamstrung by the deficiencies in Apple’s direct sur-
vey evidence, the majority trumpets instead Apple’s
“copying” evidence and even creates new evidence:
    Given the strength of the evidence of copying and
    Samsung’s professed belief in the importance of
    the patented features as a driver of sales, and the
    evidence that carriers or users also valued and
    preferred phones with these features, the district
    court erred by disregarding this evidence, which
    further establishes a causal nexus and Apple’s ir-
    reparable harm.
Majority Op. at 15. All three parts of this statement are
wrong: there was no evidence at all of such “carriers’ or
users’ preference;” there was no “strong” evidence of
“copying;” and “copying” alone is not dispositive to estab-


removes the words “or significant” from this sentence.
Majority Op. at 17.
8               APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



lish a causal nexus to Apple’s alleged irreparable harm
from lost sales.
    First, the majority’s “carriers’ or users’ preference”
theory was not mentioned at all by the district court. The
majority asserts that “[t]he district court acknowledged
that Apple presented evidence that carriers (’721 patent)
and users (’172 patent), not just Samsung, preferred and
valued the infringing features and wanted them in Sam-
sung phones.” Id. at 15. The majority again quotes
nothing from the district court’s opinion to show there is
such an acknowledgement. Again for good reason: there
is nothing. As the majority notes just two sentences later,
the district court “failed to appreciate” that the evidence
cited by Apple “did not just demonstrate that Samsung
valued the patented features, but also that its carriers or
users valued the features.” Id. The district court could
not have “acknowledged” what it “failed to appreciate.”
The majority reaches its creative interpretation of the
evidence to find “carriers’ or users’ preference” all on its
own.
     The majority also cites nothing from the record to
support its “carriers’ or users’ preference” theory. I can
only guess that the majority’s “users (’172 patent) prefer-
ence” theory is relying on its earlier statement that “users
criticized Samsung’s noninfringing keyboards and word-
correction designs,” for that is the only reference by the
majority to anything in the record in connection with
users and the ’172 patent. See id. at 13 (citing J.A.
20985). The document in the Joint Appendix on page
20985, however, is merely an internal Samsung e-mail
message that mentioned “carrier issues” with Samsung’s
keyboard user interface and referred to a table of infor-
mation immediately following. Apple’s expert, Mr. Cock-
burn, concluded from the table that Samsung was
proposing to use the feature defined in the ’172 patent.
J.A. 10700–02 (“And the next column across says ‘shows
word in suggestion bar but does not change in the text
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.              9



field until user accepts or hits space.’ So this is the in-
fringing method.”). Immediately below the text interpret-
ed by Apple’s Mr. Cockburn as proposing the infringing
feature, Samsung’s employees noted “[Carrier requests
additional information] It is not clear exactly what the
issue is.” J.A. 20988 (brackets in original). The carrier
was concerned about and had some “issue” with Sam-
sung’s proposal to change to the purported infringing
feature; the “carrier issues” were not about Samsung’s
previous non-infringing method.
     This e-mail message mentioned no users’ or carriers’
criticisms of Samsung’s non-infringing alterative to the
’172 patent’s method. See J.A. 20983–88, J.A. 10700–02.
Moreover, even if this e-mail were to show such criticisms,
a negative view towards a non-infringing feature does not
prove a positive preference towards the patented feature.
Consumers could have preferred many other non-
infringing word correction alternatives to the ’172 patent,
including Apple’s implementation in its “undisputedly
successful” products that do not practice the ’172 patent.
See Majority Op. at 4.
    Likewise, I can only guess that the majority’s “carri-
ers (’721 patent) preference” theory is relying on its earli-
er statement that “Samsung e-mails not[ed] that certain
carriers disapproved of the noninfringing ‘circle lock’
alternative,” for that is the only statement by the majority
tying the ’721 patent to carriers. See id. at 12 (citing J.A.
21019). The document in the Joint Appendix on page
21019, however, is merely an internal Samsung e-mail
message referring to a single carrier’s “negative response
towards our company’s circle lock playing the role of the
unlock visual cue.” The majority’s characterization of the
negative response as a “disapproval” is much too strong
because the response was only preliminary; the carrier
had not reviewed an actual working sample and was
“request[ing] to review actual working sample . . . .” See
id. Moreover, as discussed above, a negative view to-
10              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



wards a non-infringing feature does not prove a positive
preference for the patented feature. The evidence cited by
the majority of a “negative response” does not show that
any carrier preferred the feature defined by the ’721
patent. The majority’s “carriers’ or users’ preference”
arguments and the factual record it builds for support
dissolve upon review of the evidence.
      What we are therefore left with is the majority’s reli-
ance on the so-called “copying” by Samsung to justify its
reversal of the district court’s finding of no irreparable
harm from lost sales. And the factual support is weak.
The majority concedes as much in concluding that “the
evidence may not make a strong case of irreparable harm
. . . .” Id. at 22.
    Nevertheless, the majority states that “[t]he district
court wrote that there was evidence . . . ‘indicative of
copying.’” Id. at 13. The quotations upon which the
majority relies, however, are not the district court’s find-
ings. Rather, they are the district court’s recitation of
Apple’s contentions, with which the district court disa-
greed. As the district court noted, “[w]hile indicative of
copying by Samsung, this evidence alone does not estab-
lish that the infringing features drove customer demand
for Samsung’s smartphones and tablets.” See Injunction
Order at *14 (emphasis added). The district court, of
course, did not mean that Apple proved copying for all
three patents-in-suit. As the district court noted, Apple
did not practice or allege copying of the ’172 patent. Id.
The district court also rejected Apple’s only support for its
contention that it practiced the ’647 patent. Id. at *15
(finding Apple’s only evidence of its own use “did not
directly equate asserted claim 9 of the ’647 patent with
‘data detectors’”). Without Apple practicing these patents,
Samsung obviously could not have copied the patented
features from Apple’s products.
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.            11



     The district court also discounted Apple’s evidence of
“copying,” because “[s]ome of the cited Samsung docu-
ments show that Samsung valued numerous other nonin-
fringing features.” See id. In fact, Apple’s evidence of
“copying” lacked any connection to the critical details that
define the patented features. The handful of internal
Samsung documents cited by Apple merely addressed
generic or un-patented aspects of Apple’s linking and
screen-unlocking features. For example, one internal
Samsung analysis recommended that Samsung provide
“Links for memo contents such as Web, Call and E-mail,
that can be linked.” J.A. 20584. But the asserted ’647
patent claim does not monopolize the general concept of
linking from documents; it is limited instead by specific
elements such as “display[ing] a pop-up menu of the
linked actions” and more. See Injunction Order at *1
(detailing asserted ’647 patent claim 9). None of these
critical elements were addressed in Apple’s “copying”
evidence.
     Similarly, another internal Samsung analysis com-
pared Apple’s “unlocking standard by sliding” with Sam-
sung’s “unlock[ing] with only a slight flick motion.” J.A.
20347. But the ’721 patent does not deal with an innova-
tion based on the strength and speed of the touch input,
i.e., “sliding” versus “slight flick motion;” it requires
instead details such as “display[ing] visual cues to com-
municate a direction of movement of the unlock image
required to unlock the device” and more. See Injunction
Order at *2 (detailing asserted ’721 patent claim 8).
Again, none of these critical elements were addressed in
Apple’s “copying” evidence. Merely mentioning generic or
un-patented aspects of Apple’s linking and screen-
unlocking features is clearly insufficient to show copying
of the relevant patented features.
    Finally, the majority concludes that the evidence in
this case, which boils down to Apple’s allegations of
“copying,” is enough to show nexus to Apple’s alleged
12              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



irreparable harm from lost sales. This conclusion is
contrary to our precedent. As the district court stated,
“the parties’ subjective beliefs about what drives consum-
er demand are relevant to causal nexus, but do not inde-
pendently satisfy the inquiry.” Id. at *14. Once again,
the district court was doing nothing more than faithfully
following our case law. We have repeatedly affirmed the
district court’s previous rejections of the same allegations
of “copying” as insufficient to show irreparable sales-
based harm. Apple I at 1327; Apple III at 1367. As we
have explained, to prove nexus to the alleged lost-sales,
“the relevant inquiry focuses on the objective reasons as
to why the patentee lost sales, not on the infringer’s
subjective beliefs as to why it gained them (or would be
likely to gain them).” Apple I at 1327–28.
    The district court was well within its discretion to re-
ject Apple’s contentions of “copying.” There is simply no
basis for this court, on an abuse of discretion review, to
reverse the district court’s denial of Apple’s injunction
request.
                              D
     In sum, the majority states that “the evidence [of con-
sumer preferences and buying choices] is to be determined
on a case-by-case basis based on what the evidence indi-
cates.” Majority Op. at 14. The district court did exactly
that in this case. Given the unassailable factual findings
by the district court, the majority faces a tough mountain
to climb to reach a reversal.
    Thus, in order to reach its result, as described above,
the majority rests on findings of non-existent legal error,
of “carriers’ preference” created without record support,
and of “copying” as dispositive to show causal nexus to
lost sales that is contrary to our case law. I must disagree
with the majority’s approach and its conclusion that
APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.            13



Apple would suffer irreparable harm from Samsung’s
patent infringement. 3
                               E
    Finally, I also note the majority’s discussion on the
public interest factor. I agree with the majority that the
public’s interest in competition, without more, does not
necessarily decide this factor against granting an injunc-
tion. But it does not follow that the public interest “near-
ly always” favors granting an injunction as the majority
states. According to the majority, “[i]njunctions are vital
to this system. As a result, the public interest nearly
always weighs in favor of protecting property rights,
especially when the patentee practices his inventions.”
Id. at 21.
    The majority repeatedly relies on the statutory right
to exclude others from practicing a patent and the public
policy embodied in the statute. See id. at 5–6, 12, 21. But
I am confident that we all remain mindful that pre-eBay,



   3     I also disagree with the majority’s reversal of the
district court’s findings that remedy at law would be
adequate. This reversal is premised on the majority’s
disagreement with the district court’s findings of no
irreparable harm and the majority’s acceptance of Apple’s
contention that any lost downstream sales would be
“difficult to quantify.” Majority Op. at 17. We noted
previously that if “Apple cannot demonstrate that demand
for Samsung’s products is driven by the infringing fea-
tures, then Apple’s reliance on lost market share and
downstream sales to demonstrate the inadequacy of
damages will be substantially undermined.” Apple III at
1371. Because I agree with the district court that Apple
failed to show irreparable harm, I would also affirm the
district court’s finding that Apple failed to show inade-
quacy of legal remedy.
14              APPLE INC.   v. SAMSUNG ELECTRONICS CO., LTD.



“[a]ccording to the Court of Appeals, this statutory right
to exclude alone justifie[d] its general rule in favor of
permanent injunctive relief.” eBay, 547 U.S. at 392. The
Supreme Court, however, unanimously rejected that
approach, reasoning that “the creation of a right is dis-
tinct from the provision of remedies for violations of that
right.” Id. For the same reason, the statutory right to
exclude should not categorically bias the public interest
factor “strongly” in the determination of the injunctive
remedies as the majority asserts. See Weinberger v.
Romero-Barcelo, 456 U.S. 305, 312 (1982) (“The Court has
repeatedly held that the basis for injunctive relief in the
federal courts has always been irreparable injury and the
inadequacy of legal remedies.”). The particular facts of a
given case matter.      As Justice Kennedy explained,
“[w]hen the patented invention is but a small component
of the product the companies seek to produce and the
threat of an injunction is employed simply for undue
leverage in negotiations, legal damages may well be
sufficient to compensate for the infringement and an
injunction may not serve the public interest.” eBay, 547
U.S. at 396–97 (Kennedy, J., concurring).
    Based on this record, I cannot agree with the majori-
ty’s broad warning that “[i]f an injunction were not to
issue in this case, such a decision would virtually foreclose
the possibility of injunctive relief in any multifaceted,
multifunction technology.” See Majority Op. at 22. Ra-
ther, injunctive relief will be appropriate when and if,
consistent with our case law, the causal nexus require-
ment is met. This is not such a case.
