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Unplugged: Claim construction errors, presumption of harm short-circuit preliminary injunction

by Yuhe Liu, PhD | Aug 13, 2026 | Patents

The US Court of Appeals for the Federal Circuit vacated a preliminary injunction, finding that the district court improperly imported a spatial limitation into the claim term “backplate” and erroneously treated the structural term “pin” as a means-plus-function limitation. The Court also reiterated that in preliminary injunction proceedings, a strong showing of validity and infringement does not give rise to a presumption of irreparable harm. Socket Solutions, LLC v. Import Global, LLC, Case No. 25-1121 (Fed. Cir. Aug. 4, 2026) (Moore, C.J.; Prost, J.; Seeborg, Distr.J. (sitting by designation)).

Socket Solutions owns a patent directed to an indoor electrical outlet cover designed to conceal an outlet’s contact openings while permitting continued use of the outlet. Socket Solutions sued Import Global, alleging that Import Global’s Neat Socket product infringed. Socket Solutions also moved for a preliminary injunction. Adopting a magistrate judge’s reports and recommendations, the district court granted the injunction, barring Import Global from making, using, selling, offering to sell, or importing the accused product. Import Global appealed.

The Federal Circuit first addressed the district court’s construction of “backplate.” The district court construed the term as the component of the cover opposite the frontplate that included at least one set of electrical prongs. Import Global argued that the backplate instead referred to the portion of the cover closest to the wall outlet.

The Federal Circuit rejected both constructions because each imposed a spatial relationship not required by the specification. Looking to the written description, the Court explained that the backplate was used to define the thickness of the outlet cover. The Court therefore construed “backplate” as the component that, together with the frontplate, formed the cover such that the cover’s maximum thickness was measured between the frontplate and that component at the cover’s central portion. The Court also declined to require the backplate itself to include electrical prongs. Because the asserted claim separately recited that limitation, incorporating it into the construction of “backplate” would improperly render other claim language superfluous.

The Federal Circuit next concluded that the district court erred by construing “pin” as a means for making an electrical connection between a wire and a corresponding prong, effectively treating the term as a means-plus-function limitation under Section 112(f). Because the claim did not use the word “means,” the presumption against application of Section 112(f) applied. The Court found that the presumption was not overcome because the specification described a “pin” structurally, and the parties agreed that a skilled artisan would understand a pin to identify structure.

The Federal Circuit rejected Socket Solutions’ proposed purely functional construction as too broad because not every structure capable of connecting a wire to a prong is necessarily a pin. It likewise rejected Import Global’s proposed “mechanical system” construction as unsupported by the specification. Finding neither lexicography nor disavowal, the Court concluded that “pin” should receive its plain and ordinary meaning.

Finally, the Federal Circuit addressed the district court’s irreparable harm analysis. Although the Court did not decide whether Socket Solutions had established irreparable harm, [...]

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No Protectable Code: No Literal or Nonliteral Copying

by Keval Amin | May 15, 2025 | Copyrights

The US Court of Appeals for the Eighth Circuit affirmed a district court’s ruling that a plaintiff failed to establish copyright protection for its software platforms, drawing a distinction between “literal” copying (direct duplication of source code) and “nonliteral” copying (reproduction of structure, sequence, or user interface). InfoDeli, LLC v. Western Robidoux, Inc., et al., Case No. 20-2146 (8th Cir. May 5, 2025) (Gruender, Kelly, Grasz, JJ.)

InfoDeli partnered with Western Robidoux, Inc. (WRI), a commercial printing and fulfillment firm co-owned by family members, in 2009 to form a joint venture. The agreement leveraged InfoDeli’s expertise in developing custom webstore platforms and WRI’s capacity for printing and fulfillment. Their collaboration served major clients such as Boehringer Ingelheim Vetmedica Inc. (BIVI) and CEVA Animal Health, LLC, both providers of animal health products. InfoDeli built webstores enabling the companies’ sales teams to order promotional materials, which WRI then fulfilled. InfoDeli developed the Vectra Rebate platform for CEVA, allowing marketing staff to issue customer coupons that were also fulfilled by WRI.

By early 2014, tensions emerged. Without informing InfoDeli, WRI hired a competitor, Engage Mobile Solutions, to replace InfoDeli’s platforms for CEVA and BIVI. Engage used open-source software, in contrast to InfoDeli’s proprietary systems. WRI also shared InfoDeli-developed content with Engage to aid the transition. Shortly thereafter, WRI abruptly terminated its joint venture with InfoDeli.

InfoDeli sued WRI, CEVA, BIVI, and Engage for copyright infringement, tortious interference, and violations of the Missouri Computer Tampering Act related to certain webstores. The defendants counterclaimed conversion and tortious interference. The district court ruled in favor of the defendants on the copyright claims and denied InfoDeli’s motion on the counterclaims. After a jury sided with the defendants, InfoDeli filed motions for judgment and a new trial, both of which were denied. InfoDeli appealed.

The Eighth Circuit found that InfoDeli failed to prove its platforms were protected by copyright. The Court distinguished between “literal” and “nonliteral” copying, explaining that literal copying referred to direct duplication of original source code while nonliteral copying involved reproducing the overall structure or user interface. The district court had already determined that the nonliteral elements of InfoDeli’s platforms were not copyrightable. On appeal, InfoDeli did not challenge this determination regarding the individual elements. Instead, InfoDeli argued that the platforms should be protected “as a whole,” claiming that the interrelationship of elements made them protectable. However, the Eighth Circuit found that InfoDeli did not explain how the elements’ arrangement exhibited the required creativity for copyright protection.

InfoDeli further argued that the district court erred in not considering the verbatim copying of its source code. However, since InfoDeli’s complaint only alleged infringement of nonliteral elements, the Eighth Circuit found that the district court properly focused on those claims.

InfoDeli also argued that the district court erred by relying on InfoDeli’s expert’s list of protectable elements for the BIVI platform. However, the Court rejected this claim, pointing to precedent holding that when a plaintiff identifies specific elements as protectable, it effectively concedes that the remaining elements [...]

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It’s Not in the Bag: TTAB Refuses to Register Generic Handbag Design

by Sarah Bro | Apr 28, 2022 | Trademarks

Ending a hard-fought three-year campaign to secure registration of a popular handbag, the US Patent & Trademark Office (PTO) Trademark Trial & Appeal Board designated as precedential its decision refusing registration of the product configuration mark, deeming it a generic configuration not eligible for trademark registration. The Board also concluded that even if the bag design had not been generic, the applicant failed to make a necessary showing that the design of the bag had acquired distinctiveness. In re Jasmin Larian, LLC, Serial No. 87522459 (TTAB, Jan. 19, 2022; redesignated Mar. 29, 2022) (Cataldo, Lynch, Allard, ATJ).

Fashion brand CULT GAIA’s “ARK” handbag is composed of bamboo strips creating a creating a see-through “sunburst design,” and has been carried by celebrities such as Beyoncé and Jessica Alba. The brand’s founder and CEO Jasmin Larian sought registration on the Principal Register of the following mark for a three-dimensional handbag:

After several years of examination, the examining attorney ultimately issued a final refusal on the ground that the proposed configuration was a generic configuration, or alternatively, was a nondistinctive product design that had not acquired distinctiveness. Larian appealed to the Board.

Acknowledging the commercial success of the CULT GAIA ARK bag, the Board explained that the issue before it was whether the proposed mark was generic (i.e., a common handbag design), or, alternatively, whether the bag constituted a nondistinctive product design that had acquired distinctiveness. The Board tackled both questions, since similar evidence was relevant to both inquiries.

A trademark must be distinctive to be eligible for registration. Such distinctiveness is measured on a spectrum, where one side of the spectrum is made up of generic terms or generic designs (i.e., non-distinctive and non-protectable as trademarks) and the other side is made up of registrable trademarks that are arbitrary or fanciful. Suggestive trademarks fall somewhere in the middle. In the context of product designs, genericness may be found where the design is so common in the industry that the design cannot be said to identify a particular source of the product. Generic product designs fail to function as a trademark. Genericness is assessed by determining the genus of the goods or services at issue, then determining whether the consuming public primarily regards the design sought to be registered as a category or type of trade dress for the genus of goods or services. For the ARK bag, the applicant and the examining attorney agreed that “handbags” was the genus of the goods at issue. The relevant consuming public was found to consist of ordinary consumers who purchase handbags.

The Board reviewed the evidence of record to assess the significance of the bag design to ordinary consumers, i.e., whether they viewed the configuration of the bag as a source-identifying trademark or merely as a common handbag design. The Board detailed eight different categories of evidence, which, according to the Board, showed that “in the decades leading up to and the years immediately preceding [...]

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No Appellate Jurisdiction to Review Post-Verdict Appeal of Previously Denied SJ Motion

by Paul Devinsky | Jan 21, 2021 | Trademarks

In a closely watched trademark/counterfeiting case, the US Court of Appeals for the Second Circuit affirmed a judgment for contributory infringement, award of permanent injunction and monetary damage award against a commercial landlord found to have been willfully blind to trademark infringement and counterfeiting occurring on its leased property. Omega SA v. 375 Canal, LLC, Case No. 19-969 (2d Cir. Jan. 6, 2021) (Menashi, J.) (Lohier, J., concurring in part, dissenting in part). The Court also concluded that it could not consider a post-verdict appeal on a legal issue raised in a denied summary judgment motion (i.e., whether the landlord needed to know of a specific vendor involved in the counterfeiting) when the appellant failed to file a timely notice of appeal and did not seek an interlocutory appeal or file a Rule 50 motion for judgment as a matter of law on the issue.

375 Canal LLC is a commercial landlord with properties in Manhattan, including 375 Canal Street. Omega SA is a watch company. Omega sued Canal for contributory trademark infringement, alleging that Canal had continued to lease space at 375 Canal Street to vendors despite knowing that the vendors were selling counterfeit Omega goods. After discovery, Canal moved for summary judgment, contending that Omega did not identify a specific vendor to which Canal continued to lease property despite knowing or having reason to know that the specific vendor was selling counterfeit goods. Omega argued that its primary theory of willful blindness did not require identification of a specific vendor. The district court denied Canal’s motion, agreeing that Omega was not required to identify a specific vendor.

The jury found that Canal had contributorily and willfully infringed Omega’s trademarks, and awarded $1.1 million in statutory damages. The district court amended the final judgment to include a permanent injunction prohibiting Canal from infringing and taking other actions with respect to Omega’s marks, even outside of 375 Canal Street. Canal appealed, arguing that the district court erred by not requiring Omega to identify a specific vendor that Canal knew or should have known was infringing Omega’s trademarks. Canal raised this argument by appealing the pre-trial order denying Canal’s motion for summary judgment and the jury instructions.

The Second Circuit dismissed Canal’s appeal of the summary judgment denial and affirmed the jury instructions on the merits. On Canal’s challenge to the summary judgment denial, the Court began with the premise that a party generally cannot appeal an order denying summary judgment after a full trial on the merits because of its interlocutory character, which is not within appellate jurisdiction. The denial of Canal’s summary judgment motion did not qualify for an exception allowing review, such as situations where Congress has provided for review of certain interlocutory decisions, or where the Supreme Court has construed certain denials of summary judgment, such as those on the basis of qualified immunity, as final decisions permitting review. But even if it had qualified, Canal would have been required to file a notice of appeal within [...]

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Nefarious Motives Could Mean No Declaratory Judgment for You

by Jodi Benassi | Apr 2, 2020 | Patents

The US Court of Appeals for the Federal Circuit affirmed a district court’s decision to dismiss a first-filed declaratory judgment complaint, finding that equitable considerations warranted departure from the first-to-file rule. Communications Test Design, Inc. v. Contec, LLC, Case No. 19-1672 (Fed. Cir. Mar. 13, 2020) (O’Malley, J.).

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