This аppeal is primarily governed by the standard of review. We directly address a challenge to the appropriate standard for reviewing a district court’s findings of substantial similarity in copyright law cases. We adopt the standard from the majority of other circuits and review the district *961 court’s fact findings concerning substantial similarity for clear error.
In this copyright infringement action, Taylor Corporation (Taylor), a greeting card manufacturer, claims Four Seasons Greetings, LLC (Four Seasons), a competing greeting card company, infringеd Taylor’s copyrights in six greeting card designs. Following a bifurcated trial, the district court 1 concluded Taylor owns the copyrights in the six greeting card designs at issue, and Four Seasons’s card designs infringe Taylor’s copyrights. The district court issued a permanent injunction against Four Seasons, directing Four Seasons to stop copying, selling, or distributing the six greeting card designs. Four Seasons appeals, arguing the district court erred: (1) in holding Four Seasons liable for copyright infringement, and (2) in issuing a permanent injunction. We affirm.
I. BACKGROUND
This case involves claims of illegal copying ‘Of six holiday greeting card designs. Creative Card Company (Creative Card) employed Frank Stockmal (Stockmal), Bernard Granger (Granger), Michael Shelton (Shelton), and Aleta Brunettin (Brun-ettin) to design greeting cards. While working for Creative Card, these artists created the six card designs disputed in this case: Colored Presents, Ribbon of Flags Around Globe, Three Worlds of Thanks Globe Ornament, Pencil Sketch Farm, Thanksgiving Cart, and Wreath with Verse. Because the artists were employed by Creative Card when the artists created the card designs, Creative Card is considered thе author and the original copyright owner of the six designs. 2 At the time Creative Card authored the six card designs, Creative Card was a wholly owned subsidiary of AP & P Manufacturing, Inc. (AP & P).
In 1999, Creative Card’s president left Creative Card and formed Four Seasons. Three of Creative Card’s artists-Stockmal, Shelton, and Brunettin-resigned from Creative Card and went to work for Four Seasons. While employed by Four Seasons, Stockmal, Shelton, and Brunettin created six card designs Taylor contends are similar to six card designs the artists and Granger previously created for Creative Card.
AP & P later filed for bankruptcy. In April 2000, AP & P and Taylor еntered into an Asset Purchase Agreement (Agreement), in which AP & P agreed to sell certain assets to Taylor, including AP & P’s assets “used in the operation of [AP & P’s] Business.” The Agreement defines “business” as “the business of designing and publishing greeting cards, ... as currently conducted by the Creative Card division of [AP & P].” AP & P also agreed to transfer to Taylor “[a]ll intellectual property of the Business, including ... copyrights, ... artwork, designs and other intangible property of the Business, ... including without limitation the Intellectual Property listed in Schedule 1.1(d).” Schedule 1.1(d) identifies hundreds of greeting card designs, including the six card designs authored by Creative Card. On April 28, 2000, the United States Bankruptcy Court for the District of Delaware approved the sale of AP & P’s assets to Taylor.
*962 In June and August 2001, Taylor registered the six card designs at issue in this case with the United States Copyright Office. The original copyright registrations misidentified Taylor as the author of each card design. In August 2003, Taylor filed supplementary registrations correctly identifying Creative Card as the author of each work. The supplementary registrations listed Taylor as the copyright claimant. The registration form requires the copyright claimant, if different from the author, to give a brief explanation as to how the clаimant obtained ownership of the copyright. In response to that direction, each supplementary registration contains the statement “Bill of Sale and Assignment from [AP & P] to Taylor ... dated May 9, 2000.”
Taylor sued Four Seasons for copyright infringement under the 1976 Copyright Act, 17 U.S.C. §§ 101-1332, for “copying, manufacturing, producing, publishing, selling, promoting and/or advertising ... greeting cards bearing designs ... substantially similar to [Taylor’s] Works.” The district court preliminarily enjoined Four Seasons from further sale or distribution of the six cards in question. This court affirmed the preliminary injunction.
Taylor Corp. v. Four Seasons Greetings, LLC,
Before trial, Four Seasons stipulated it earned a profit of $45,976.95 from sales of the six card designs. Despite Four Seasons’s stipulation of damages, Taylor filed a “Notice of Election of Remedies and Withdrawal of Jury Demand,” wherein Taylor sought only injunctive relief at trial. The district court bifurcated Taylor’s action into two separate trials. First, the parties tried Taylor’s infringement claim to the court and to an advisory jury. The advisory jury unanimously found Four Seasons’s cards infringed Taylor’s copyrights. Second, the parties tried Taylor’s claim that it owns the copyrights at issue to the district court, which concluded “[Taylor] is the legal owner of the copyrights pertaining to the [six card designs].” After deciding Four Seasons infringed Taylor’s copyrights, the district court entered judgment in favor of Taylor and issued a permanent injunction against Four Seasons, prohibiting Four Seasons “from any further copying, manufacture, production, reproduction, publication, display, distribution, promotion, sale or offering for sale of the six Four Seasons designs.”
Four Seasons challenges the district court’s judgment, contending the district court erred: (1) in concluding Taylоr owns the copyrights in the six card designs; (2) in “failing to identify what constituent elements of the Taylor cards were original, protectable expression that was copied by Four Seasons”; (3) in failing to find Four Seasons’s cards were independently created; (4) in granting injunctive relief after Taylor elected not to accept monetary damages; and (5) in depriving Four Seasons of its right to a jury in the ownership phase of the trial.
II. DISCUSSION
A. Copyright Infringement
Copyright law grants the copyright owner a limited monopoly to exploit his creation. This limited monopoly “is intendеd to motivate the creative activity of authors and inventors by the provision of a special reward, and to allow the public access to the products of their genius after the limited period of exclusive control has expired.”
Sony Corp. of Am. v. Universal City Studios, Inc.,
On appeal, Four Seasons claims Taylor failed to prove copyright infringement. First, Four Seasons argues Taylor failed to prove it owns the cоpyrights in the six card designs. Second, Four Seasons contends Taylor failed to prove Four Seasons copied any original, protectable elements of Taylor’s card designs. Finally, Four Seasons maintains it independently created its card designs.
1. Ownership
Copyrights, like other property rights, may be transferred from the owner to another entity. See 17 U.S.C. § 201(d). The Copyright Act sets forth the requirements of a transfer: “A transfer of copyright ownership, other than by operation of law, is not valid unless an instrument of conveyance, or a note or memorandum оf the transfer, is in writing and signed by the owner of the rights conveyed or such owner’s duly authorized agent.” 17 U.S.C. § 204(a).
It is uncontested Creative Card, the author of the card designs, originally owned the copyrights. The parties further agree Creative Card did not execute a writing expressly transferring or assigning its copyrights to AP & P or to Taylor. However, Taylor contends the bankruptcy court’s order effected the transfer of Creative Card’s copyrights to Taylor. Accordingly, the question is whether Taylor proved a transfer of copyright ownership “by operation оf law.”
Section 204(a) of the Copyright Act does not define the phrase “by operation of law,” and sparse case law addresses the transfer of copyright “by operation of law.”
Brooks v. Bates,
Other courts similarly have held corporate mergers and dissolutions transfer copyright ownership “by operation of law.”
See Lone Ranger Television, Inc. v. Program Radio Corp.,
We conclude the bankruptcy court’s order approving AP & P’s and Taylor’s Agreement constituted a transfer of the copyrights “by operation of law.” The Agreement explicitly states AP & P sold to Taylor “the business of designing and publishing greeting cards, ... as currently conducted by the Creative Card division.” The Agreement further transferred from AP & P to Taylor “[a]ll intelleсtual property of the Business,” and Schedule 1.1(d) identifies the card designs at issue in this case. We agree with the district court that the bankruptcy court’s April 28, 2000 order approving AP & P’s and Taylor’s Agreement vested Taylor with ownership in the copyrights in Creative Card’s card designs. 3
2. Copying
The second element required to show copyright infringement is copying. Taylor presented no direct evidence of copying. In the absence of direct evidence, Taylor may establish copying by proving: (1) Four Seasons had access to the copyrighted card designs; and (2) substantial similarity between the card designs.
Hartman v. Hallmark Cards, Inc.,
a. Standard of Review
Four Seasons’s “substantial similarity” argument raises a threshold, and potentially controlling, issue regarding our standard of review. In
Taylor I,
we assumed the district court’s findings of substantial similarity were subject to review for clear error.
Taylor I,
Four Seasons cites a line of cases from the Second Circuit for the proposition that appellate review of “substantial similarity” determinations in copyright law cases is de novo. In
Boisson
and
Folio Impressions,
the Second Circuit rejected a clearly erroneous standard of review in favor of a de novo standard of review.
Boisson v. Banian, Ltd.,
We are unpersuaded by the Second Circuit’s reasoning supporting de novo review of findings of substantial similarity in copyright law cases. Federal Rule of Civil Procedure 52(a) specifically states “[i]n all actions tried upon the facts without a jury or
with an advisory jury,
the court shall find the faсts.” (emphasis added). Rule 52(a) then describes our appellate review: “Findings of fact, whether based on oral
or documentary evidence,
shall not be set aside unless clearly erroneous.” (emphasis added). Thus, neither an advisory jury nor findings of fact resting solely on documentary evidence changes this rule of deference to the district court’s fact findings.
See Anderson v. Bessemer City,
The majority of circuit courts adhere to a clearly erroneous review of findings of “substantial similarity” in copyright law cases.
See, e.g., Hennon v. Kirkland’s, Inc.,
No. 94-2595,
We find additional support for our conclusion in case law construing substantial similarity in actions involving alleged patent infringement.
See Sony Corp. of Am.,
Having determined the appropriate standard of review, we next consider whether the district court clearly erred in finding Taylor’s and Four Seasons’s card designs are substantially similar.
b. Substantial Similarity
The Eighth Circuit applies a two-step analysis-an extrinsic test and an intrinsic test-to determine substantial similarity:
First, similarity of ideas is analyzed extrinsically, focusing on objective similarities in the details of the works. Second, if there is substantial similarity in ideas, similarity of expression is evaluated using an intrinsic test depending on the response of the ordinary, reasonable person to the forms of expression.
Hartman,
Four Seasons does not challenge the district court’s application of the “extrinsic” step of the substantial similarity analysis. Four Seasons generally admits the cards share the same “general thematic and technical levels-e.g., similar holiday themes, paper stock and printing techniques.” Four Seasons does, however, challengе the district court’s application of the “intrinsic” step of the substantial similarity analysis.
Four Seasons first argues the district court failed to distinguish between protectable and unprotectable elements of Taylor’s card designs. Four Seasons advanced this same argument in
Taylor I,
and our previous panel rejected Four Seasons’s argument.
See Taylor I,
Next, Four Seasons contends any similarities between the сard designs “are both qualitatively and quantitatively insubstantial.” Although Four Seasons points to various differences in detail in each of the card designs, “a finding of substantial similarity is not precluded where differences in detail do little to lessen a viewer’s overwhelming impression that the defendant’s products are appropriations.” Yur
man Design,
c. Independent Creation
“By establishing reasonable access and substantial similarity, a copyright plaintiff creates a presumption of copying.”
Three Boys Music Corp. v. Bolton,
B. Permanent Injunction
“We review a district court’s issuance of a permanent injunction for an abuse of discretion.”
Wigg v. Sioux Falls Sch. Dist. 49-5,
The Copyright Act specifically authorizes a federal court to “grant temporary and final injunctions on such terms as it may deem reasonable to prevent or restrain infringement of a copyright.” 17 U.S.C. § 502(a). To determine whether permanent injunctive relief is warranted, we balance three factors: (1) the threat of irreparable harm to the moving party; (2) the balance of harm between this harm and the harm suffered by the nonmoving party if the injunction is granted; and (3) the public interest.
See Bank One v. Guttau,
Four Seasons contends injunctive relief is not warranted in this case, because “[b]y having ‘elected’ not to take damages in an uncontested amount, Taylor has conceded that it has suffered no damage and that its legal claim is a nullity.” We find this argument to be wholly without merit. Taylor never conceded it suffered no damage. Rather, “Taylor chose to streamline its case.” Therefore, we conclude a valid legal remedy remained available to Taylor.
Because Taylоr had a legal remedy available to it, i.e., uncontested damages in the amount of $45,976.95, the question then becomes whether Taylor was entitled to seek purely equitable relief in the form of a permanent injunction. It is well-established that a party is entitled to equitable relief only if there is no adequate remedy at law.
Morales v. Trans World Airlines, Inc.,
Four Seasons next аrgues the permanent injunction disserves the public interest, because the injunction harms Four Seasons’s “interest in pursuing its business” and makes it “impossible for these artists to continue in the greeting card business.” The harm to Four Seasons and the artists is minimal, because Four Seasons may continue to -sell other card designs in its portfolio, and the artists are free to create innovative card designs. Injunctions regularly are issued pursuant to the mandate of section 502, because the “public interest is the interest in upholding copyright protections.”
Autoskill, Inc. v. Nat’l Educ. Support Sys., Inc.,
C. Jury Trial
Finally, Four Seasons contends the district court violated Fоur Seasons’s Seventh Amendment right to a jury trial by erroneously “depriv[ing] Four Seasons of its constitutional right to have the jury decide disputed factual issues in both the liability and ownership phase of this case.” “Whether a party has a right to trial by jury in federal court is a question of law subject to de novo review.”
Ind. Lumbermens Mut. Ins. Co. v. Timberland Pallet & Lumber Co.,
The Seventh Amendment preserves, “[i]n Suits at common law, ... the right of trial by jury.” U.S. Const. amend. VII. The Supreme Court has established a two-prong test for determining whether a party enforcing a statutory right is entitled to a jury trial under the Seventh Amendment.
Tull v. United States,
In
Cass County Music Co. v. C.H.L.R., Inc.,
We find the Federal Circuit’s decision in
Tegal Corp. v. Tokyo Electron America, Inc.,
On appeal, the Federal Circuit framed the jury trial issue as whether a defendant has a right to a jury trial where the plaintiff seeks only an injunction, and the defendant asserts only affirmative defenses and no counterclaims. Id. at 1339. In reaching its decision that the defendant has no right to a jury trial under such circumstances, the Federal Circuit applied the Tull two-prong jury trial test. Analyzing the first prong, the Federal Circuit explained:
“[i]n eighteenth-century Englаnd, allegations of patent infringement could be raised in both actions at law and suits in equity,” and ... the choice was the pat-entee’s and depended on the type of remedy sought. If the patentee sought an injunction and an accounting, the pat-entee went to a court of equity. If, however, the patentee sought only damages, a court of law was used.
Tegal, 257
F.3d at 1340 (quoting
In re Lockwood,
The Federal Circuit concluded neither party had a right to a jury, holding “a defendant, asserting only affirmative defenses and no counterclaims, does not have a right to a jury trial in a patent infringement suit if the only remedy sought by the plaintiff-patentee is an injunction.”
Id.
We agree with the Federal Circuit’s holding in
Tegal.
Recognizing the “historic kinship between patent law and copyright law,”
Sony Corp. of Am.,
III. CONCLUSION
For the foregoing reasons, we affirm the district court’s decision in all respects.
Notes
. The Honorable David S. Doty, United States District Judge for the District of Minnesota.
. Copyright ownership "vests initially in the author or authors of the work.” 17 U.S.C. § 201(a). An employer is the author when an item is considered a work made for hire.
See
17 U.S.C. § 201(b);
Cmty. for Creative NonViolence v. Reid,
. Indeed, if we were to conclude otherwise, no entity could pursue this infringement action. Creative Card cannot be named as a plaintiff here, and can no longer transfer the copyrights to Taylor, because in 2001, Creative Card was liquidated and ceased to exist as a corporate entity.
