IP UPDATE

Personal jurisdiction: Are cease-and-desist letters enough?

by Jolie B. Schenerman | Apr 30, 2026 | Trademarks

In a decision clarifying how certain pre litigation enforcement efforts can establish personal jurisdiction, the US Court of Appeals for the Eleventh Circuit reversed the dismissal of Lanham Act and tortious interference claims for lack of personal jurisdiction, concluding that cease and desist letters sent into the jurisdiction satisfied the minimum contacts requirement and did not offend due process. Frida Kahlo Corporation v. Mara Cristina Teresa Romeo Pinedo, Case No. 24-10293 (11th Cir. Apr. 17, 2026) (Luck, Lagoa, Abudu, JJ.)

Frida Kahlo and Frida Kahlo Investments (collectively, Kahlo) manage and license a portfolio of trademarks and publicity rights associated with the artist Frida Kahlo. Kahlo sued Familia Kahlo and Mara Cristina Teresa Romeo Pinedo (collectively, Pinedo) alleging tortious interference and Lanham Act violations arising from Pinedo’s efforts to halt a traveling Frida Kahlo exhibition and related merchandise.

Central to the dispute were cease and desist letters sent by Pinedo to Kahlo’s Florida based business partners. The letters asserted that Pinedo held superior rights to Frida Kahlo’s name, likeness, and trademarks and threatened legal action if the recipients continued their involvement with Kahlo. Kahlo alleged those claims were false and caused business partners to withdraw or hesitate, disrupting Kahlo’s licensing relationships.

Kahlo filed suit in Florida. Pinedo moved to dismiss for lack of personal jurisdiction. The district court granted the motion, concluding that Florida’s corporate shield doctrine protected Pinedo from jurisdiction and that, in any event, Pinedo lacked sufficient minimum contacts with Florida. Kahlo appealed.

The Eleventh Circuit reversed, concluding first that the corporate shield doctrine did not bar jurisdiction over Pinedo. The Court focused on the language of the cease and desist letters, which expressly identified Pinedo as the “heiress of the painter Frida Kahlo” and stated that the letters were sent “in our capacity as representatives of Mara Cristina Teresa Romeo Pinedo.” The Court found that those representations showed that Maria Pinedo was acting in her personal capacity, not merely as a corporate agent. As a result, the corporate shield doctrine, which can protect corporate officers from jurisdiction based solely on acts performed for a corporation, did not apply. Because the doctrine was inapplicable, Pinedo was subject to Florida’s long arm statute, which permits jurisdiction where a nonresident commits a tortious act outside the state that causes injury within Florida.

The Eleventh Circuit next addressed whether exercising specific personal jurisdiction would comport with due process. The Court answered in the affirmative, explaining that Pinedo intentionally directed conduct into Florida by sending cease and desist letters to Florida entities. The alleged tortious interference claims arose directly from those communications, satisfying the relatedness requirement for specific jurisdiction.

The Eleventh Circuit also found purposeful availment because Pinedo plausibly alleged an intentional tort, the letters were expressly sent to Florida entities, and it was reasonable for Pinedo to anticipate having to defend itself in Florida based on its actions.

Finally, the Eleventh Circuit concluded that Pinedo failed to make a compelling case that exercising jurisdiction would violate traditional notions of fair play and [...]

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Patent disclosure erases trade secret protection

by Hannah Hurley | Apr 30, 2026 | Patents, Trade Secrets

Addressing the boundary between patent disclosures and trade secret protection, the US Court of Appeals for the Federal Circuit reversed a jury’s findings of trade secret misappropriation, breach of contract, and improper inventorship, concluding that the asserted “trade secrets” were generally known and therefore not protectable under California law. The Court affirmed, however, a $1 million statutory damages award for trademark counterfeiting. International Medical Devices, Inc. v. Cornell, Case Nos. 25 1580; 1605 (Fed. Cir. Apr. 17, 2026) (Dyk, Reyna, Taranto, JJ.)

International Medical Devices, Menova International, and Dr. James Elist (collectively, the plaintiffs) manufacture and sell the Penuma® cosmetic penile implant. The plaintiffs sued Dr. Robert Cornell and associated individuals and entities after Cornell attended a Penuma® surgical training session under a nondisclosure agreement (NDA) and later helped develop a competing implant. The plaintiffs asserted claims for misappropriation of trade secrets, breach of the NDA, trademark counterfeiting based on unauthorized use of the Penuma® mark, and invalidity of two cosmetic implant patents for failure to name Elist as an inventor.

A jury found for the plaintiffs on all claims. After a bench trial on remedies, the district court awarded more than $17 million in trade secret and exemplary damages, entered a permanent injunction, and awarded $1 million in statutory damages for counterfeiting. Cornell appealed.

The Federal Circuit reversed the trade secret verdict in its entirety, concluding that none of the asserted trade secrets were protectable under California law. The Court concluded that the alleged technical trade secrets were disclosed in publicly available patents and thus were “generally known” as a matter of law.

In doing so, the Federal Circuit reaffirmed the long-standing principle that “that which is disclosed in a patent cannot be a trade secret.” Once information enters the public domain through patent disclosures, it cannot later be reclaimed as confidential business information through trade secret law.

The plaintiffs’ remaining alleged trade secret (a list of surgical instruments) fared no better. The Federal Circuit found that the list had been emailed to the defendants without any confidentiality designation or obligation, defeating any claim that reasonable measures were taken to maintain its secrecy.

Because the plaintiffs failed to identify any confidential information beyond the alleged trade secrets, the Federal Circuit also reversed the breach of contract verdict. The NDA expressly excluded information that was “generally available to the public,” and the Court found that an NDA cannot transform public domain information into protected confidential material.

The Federal Circuit reached a different conclusion on trademark counterfeiting, however, and affirmed the jury’s finding and the $1 million statutory damages award. The Court explained that the evidence showed that Cornell had advertised and offered Penuma® implants without authorization. Cornell argued that the Penuma® mark was registered only for goods, not services, and therefore could not support a counterfeiting claim tied to surgical procedures. The Court rejected that argument, concluding there was sufficient evidence that Cornell offered the Penuma® implant itself as a good, not merely a medical service.

Finally, the Federal Circuit [...]

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Unauthorized streaming of foreign TV programming dishes up copyright infringement liability

by Lauren Hong | Apr 23, 2026 | Copyrights

The US Court of Appeals for the Eleventh Circuit affirmed a judgment for an exclusive licensee arising from unauthorized streaming of Arabic language television programming into the United States. The Court’s ruling reinforces both the strength of registered foreign works and the limits on an accused infringer’s ability to challenge ownership and transfer agreements. Dish Network L.L.C. v. Fraifer, Case No. 24-10223 (11th Cir. Apr. 9, 2026) (Branch, Abudu, Kidd, JJ.)

DISH had exclusive US rights to distribute and publicly perform certain Arabic language television channels (protected channels). DISH’s rights derived from agreements with MBC FZ LLC, which provides five of the protected channels. Fraifer operated UlaiTV and AhlaiTV, selling set top boxes and using internet infrastructure to capture live broadcasts abroad and retransmit them to customers in the United States via content delivery networks (CDNs) without DISH’s authorization. After a bench trial, the district court found direct copyright infringement. Fraifer appealed.

Fraifer raised three arguments on appeal, all of which the Eleventh Circuit rejected.

First, Fraifer argued that DISH failed to establish valid ownership of the copyrighted works, which were first published in the United Arab Emirates. The Eleventh Circuit disagreed. The Court concluded that MBC’s US copyright registrations were entitled to the statutory presumption of validity. Because DISH was not the author of the works, the Court examined whether DISH had sufficiently established MBC’s initial ownership. Fraifer argued that the works were “joint works” under UAE law, which would undermine MBC’s sole ownership. But the Court concluded that the television programs were better characterized as “collective works,” since the various creative contributions (writing, music, directing, and other artistic elements) were inseparable in the final audiovisual products.

That classification mattered because under UAE copyright law, the entity directing the creation of a collective work may exercise the relevant rights absent an agreement to the contrary. The Eleventh Circuit also declined to entertain a late-raised challenge to the validity of the registrations, noting that Fraifer had failed to preserve invalidity as an affirmative defense. As a result, MBC was entitled to the statutory presumption of ownership, which DISH could rely on.

Second, Fraifer contended that MBC had not validly transferred exclusive rights to DISH. Even assuming arguable defects in the written conveyances, the Eleventh Circuit concluded that Fraifer lacked standing to raise the issue. Section 204(a) of the Copyright Act is designed to resolve disputes between copyright owners and transferees, not to provide accused third party infringers with a defense where neither the owner nor the transferee disputes the transfer. Because MBC and DISH agreed on the status of the rights, Fraifer could not dispute the transfer.

Finally, Fraifer challenged the sufficiency of the evidence supporting direct infringement. The Eleventh Circuit disagreed, finding that the record supported the finding of direct infringement based on Fraifer’s use of encoders to ingest live broadcasts and push copyrighted programming onto its streaming system for customer viewing. The Eleventh Circuit also upheld the district court’s evidentiary rulings, including the admission of expert testimony, monitoring [...]

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Pay up, per party litigation stipulation

by Lauren Hong | Apr 23, 2026 | Patents

The US Court of Appeals for the Federal Circuit revived key portions of a long-running patent dispute, rejecting the district court’s extraterritoriality ruling and narrowing its prosecution disclaimer analysis while leaving intact the exclusion of certain damages theories for inadequate disclosure. VLSI Technology LLC v. Intel Corporation, Case No. 24-1772 (Fed. Cir. Apr. 15, 2026) (Moore, Chen, Kleeh, JJ.)

VLSI filed suit in 2017 accusing Intel of infringing several patents related to selecting an appropriate core in a multicore processor to execute a task based on measured performance characteristics. Following claim construction and discovery, the district court struck portions of VLSI’s damages case, concluding that certain theories advanced by VLSI’s damages expert had not been adequately disclosed. The court then granted summary judgment of noninfringement on two independent grounds: extraterritoriality on the theory that the claimed “measuring” activity occurred outside the United States, and failure of VLSI’s doctrine of equivalents arguments. VLSI appealed.

The Federal Circuit reversed in substantial part. As to the asserted method claims, the Federal Circuit concluded that the district court’s extraterritoriality analysis could not be reconciled with the parties’ stipulation. That stipulation provided that, for accused Intel products and activities meeting the technical requirements of the asserted claims, 70% would be deemed to satisfy the requisite US nexus for infringement purposes. The district court had reasoned that the stipulation could not establish domestic infringement unless the underlying claim limitations themselves were practiced in the United States. The Federal Circuit disagreed, emphasizing the stipulation’s plain language that the technical requirement inquiry was to be conducted “without regard to geographic considerations.”

The Federal Circuit rejected Intel’s contention that the stipulation merely served as a damages accounting shortcut rather than as an agreement bearing on infringement. However, in the Court’s view, stipulating a fact relevant to infringement, such as US nexus, is different from conceding infringement itself. The Court therefore found that Intel was bound by the agreement it struck, even if it later came to view the agreement as “imprudently made.”

On that basis, the Federal Circuit reversed the grant of summary judgment of noninfringement on extraterritoriality grounds for the asserted method claims.

The Federal Circuit also reversed summary judgment as to the asserted apparatus claims. It concluded that the district court had focused too narrowly on where the claimed measuring functionality was practiced, rather than on whether the accused products were reasonably capable of performing the claimed functions without significant alteration. The Court concluded that the record contained sufficient evidence to create a genuine dispute of material fact as to whether the accused products were reasonably capable of performing the claimed measuring limitations. Summary judgment was therefore inappropriate, and the Court reversed the extraterritoriality ruling as to the apparatus claims.

The Federal Circuit also reinstated VLSI’s doctrine of equivalents theory for some of the apparatus claims that the district court had barred based on a prosecution disclaimer finding. Referencing the prosecution of the asserted patent, the district court imported an “upon identifying” limitation into the claims, notwithstanding [...]

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Public use, even without explicit public disclosure, is patent bar under pre-AIA § 102(b)

by Tyler Jackson | Apr 23, 2026 | Patents

The US Court of Appeals for the Federal Circuit affirmed summary judgment of invalidity under the pre-America Invents Act (AIA) on sale bar, holding that a third party sale to the public of a product embodying a patented method and apparatus can trigger invalidity even where details of the invention were not expressly disclosed. Definitive Holdings v. Powerteq, Case No. 24-1761 (Fed. Cir. Apr. 14, 2026) (Moore, Dyk, Cunningham, JJ.)

Definitive Holdings sued Powerteq alleging infringement of a patent directed to methods and systems for reprogramming engine controllers. With a priority date of March 30, 2001, the patent was subject to pre-AIA law. Powerteq moved for summary judgment of invalidity under pre-AIA 35 U.S.C. § 102(b), arguing that a nonparty, Hypertech, had sold a product (the PP3) that embodied all limitations of the asserted claims more than one year before the patent’s priority date.

Rather than disputing the underlying facts, Definitive challenged the admissibility of the evidence on which Powerteq relied. Definitive argued that the deposition testimony of Hypertech’s Rule 30(b)(6) witness, the PP3 source code, and expert testimony relying on that source code were inadmissible. The district court rejected those arguments and granted summary judgment of invalidity, concluding that the third party sales triggered the on sale bar. Definitive appealed.

The Federal Circuit reviewed the summary judgment ruling de novo, applying Tenth Circuit law.

Definitive first argued that the district court improperly relied on testimony from Hypertech’s Rule 30(b)(6) witness, Hypertech CEO and owner Jay Ramsay. The Federal Circuit disagreed, finding that Ramsay’s testimony was based on his personal knowledge and thus was sufficient to authenticate Hypertech’s sales records and establish that Powerteq’s expert analyzed source code from the PP3 product.

The Court explained that a reasonable juror could conclude that Ramsay had personal knowledge of Hypertech’s recordkeeping practices and sales activities. Because those portions of the testimony were sufficient to support summary judgment, the Court declined to address whether other portions of the 30(b)(6) testimony were properly considered and how the Tenth Circuit generally treats Rule 30(b)(6) testimony at summary judgment.

Definitive next argued that the PP3 source code and related expert testimony constituted inadmissible hearsay. The Federal Circuit disagreed. The Court explained that while comments or annotations in source code could, in some circumstances, qualify as hearsay statements, the operative source code itself functions as a set of commands or instructions. As such, it is not offered for the truth of any assertion. The Court therefore found that the district court did not abuse its discretion in considering expert testimony describing the functioning of the source code when granting summary judgment.

Finally, Definitive contended that the on sale bar did not apply because Hypertech’s sales of the PP3 did not publicly disclose how to perform the patented method, even if the PP3 embodied all claim limitations and was sold more than one year before the priority date.

The Federal Circuit rejected Definitive’s argument, emphasizing that Hypertech’s sales directly conveyed to the public the ability to practice the [...]

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