IP UPDATE

Boss move: Disclaimer that doesn’t work can still work as a disclaimer

by Joshua Revilla | Oct 30, 2025 | Patents

The US Court of Appeals for the Federal Circuit affirmed a district court’s judgment of noninfringement and no invalidity for indefiniteness, concluding that the court correctly construed the claims and properly determined that the patents’ specifications and prosecution histories would enable a person of ordinary skill in the art (POSA) to ascertain the scope of the claims with reasonable certainty. Barrette Outdoor Living, Inc. v. Fortress Iron, LP, Fortress Fence Products LLC, Case Nos. 24-1231; -1359 (Fed. Cir. Oct. 17, 2025) (Moore, Linn, Cunningham, JJ.)

Barrette sued Fortress for infringing its patents directed to a fencing assembly featuring pivoting, sliding connectors that connect pickets to rails. During claim construction, the district court determined that the terms “boss,” “projection,” and “nub” should be given the same meaning and that these “boss” terms described fastener-less and integral structures, distinguishing them from prior art. The district court also held that the terms “sliding” and “causes” were not indefinite because a POSA would understand their scope.

Following the Markman hearing, Barrette stipulated that it could not prove infringement under the court’s construction of the “boss” terms because the accused products used non-integral fasteners. Fortress stipulated, under the same construction, that it could not establish invalidity for indefiniteness. Barrette appealed, and Fortress cross-appealed.

Barrette first argued that the district court erred in finding that the specification disclaimed bosses with fasteners by disparaging prior art assemblies that used them. According to Barrette, the specification did not criticize the use of fasteners but merely distinguished the prior art designs. Fortress, however, argued that the specification repeatedly criticized assemblies employing fasteners, describing prior art systems that used fasteners to join the rails as time consuming to install. In contrast, the patented invention attributes its quick installation advantage to the use of fastener-less, integral bosses.

The Federal Circuit agreed with Barrette that the specification did not clearly and unmistakably disclaim bosses that use fasteners. The Court explained that while a patent may describe multiple advantages over the prior art, not every embodiment must incorporate each of those advantages. Accordingly, claims should not be construed to require every advancement disclosed in the specification. The Court further rejected Fortress’ argument that the claimed “boss” must always achieve the benefit of quick installation. Although the asserted patents describe ease of installation as an advantage of using bosses, that benefit does not limit the term’s structural scope. A “boss,” the Court held, is not restricted to fastener-less configurations. Accordingly, the Federal Circuit determined that the district court erred in limiting the claims to fastener-less bosses.

Barrette next argued that the district court erred by concluding that the prosecution history disclaimed non-integral bosses. The Federal Circuit rejected this argument and agreed with the district court that Barrette had clearly disclaimed non-integral boss structures during prosecution. The Federal Circuit stated that Barrette clearly distinguished prior art from the “claimed integral boss” in prosecution and expressly clarified the scope of its claims.

Barrette argued that its subsequent communications with the patent office rendered any purported disclaimer [...]

Continue Reading

Ain’t worried about local rules: Scope of sound recording protection is narrow

by Connor M. Larson | Oct 30, 2025 | Copyrights

Addressing for the first time what evidence is required to prove infringement of a sound recording copyright, the US Court of Appeals for the Seventh Circuit affirmed a district court’s decision to grant summary judgment to the defendant, finding that the plaintiff’s copyright registration of his work as a sound recording required proof of actual sampling to establish infringement. Richardson v. Kharbouch, Case No. 24-1119 (7th Cir. Oct. 16, 2025) (Brennan, Jackson-Akiwumi, Pryor, JJ.)

In 2012, then-16-year-old Eddie Richardson created a hip-hop beat titled “*Hood* Pushin Weight” (HPW). Months later, while listening to the hit song “Ain’t Worried About Nothin” (AWAN) by Karim Kharbouch, who is better known by his stage name French Montana, Richardson believed that he recognized his own HPW beat. The next day, Richardson registered a sound recording copyright with the US Copyright Office. Richardson did not obtain a copyright registration for his musical composition. After Richardson’s attempts to negotiate with French Montana and his representatives failed, Richardson filed a copyright infringement lawsuit.

The district court conducted two rounds of summary judgment briefing. In both rounds, neither party complied with a local rule that required each side to respond to the opposing party’s statement of material facts. The court, in its discretion, declined to deem the unopposed facts admitted. After French Montana’s reply brief in the first round included a “passing comment” on the nature of Richardson’s copyright, raising a potentially dispositive issue, the district court ordered supplemental briefing.

In the second round of briefing, the district court determined that because Richardson had registered his copyright as a sound recording rather than a musical composition, he was required to show duplication or sampling, not mere imitation. Finding no such evidence, the court granted summary judgment in favor of French Montana. The district court then awarded costs to French Montana but denied attorneys’ fees. Richardson appealed the grant of summary judgment and the court’s decision not to enforce the local rules against French Montana while French Montana cross-appealed the denial of attorneys’ fees.

Richardson argued that the district court abused its discretion by failing to deem his unopposed factual statements admitted under the local rules. The Seventh Circuit found no abuse of discretion by the district court, reasoning that because neither party complied with the local rules, the district court acted appropriately in declining to enforce them against only one side.

The Seventh Circuit also affirmed the district court’s grant of summary judgment in favor of French Montana, explaining that “sound recording copyrights only protect those sounds that directly or indirectly recapture the actual sounds fixed in the recording from infringement.” Mere imitation, even if indistinguishable to the listener, is not infringement, and Richardson failed to present evidence of actual duplication of the sound recording.

Finally, the Seventh Circuit affirmed the district court’s denial of attorneys’ fees to French Montana. Although there is a “strong presumption in favor of awarding fees in copyright infringement cases,” the Seventh Circuit held that the district court properly applied the four-factor Fogerty [...]

Continue Reading

Enablement: Skilled artisan’s knowledge no substitute for adequate written description

by Jolie B. Schenerman | Oct 30, 2025 | Patents

The US Court of Appeals for the Federal Circuit affirmed the US International Trade Commission’s (Commission) decision that a water filtration patent was invalid for lack of written description and enablement because the scope of the asserted claim was not enabled by the patent’s specification. Brita LP v. International Trade Commission, Case No. 24-1098 (Fed. Cir. Oct. 15, 2025) (Prost, Reyna, Chen, JJ.)

Brita filed a complaint at the Commission alleging that Vestergaard Frandsen and Helen of Troy infringed its water filtering patent. The main dispute focused on the patent’s only independent claim, which in part recites a “gravity-fed water filter, comprising filter media including at least activated carbon and a lead scavenger” that achieves a “Filter Rate and Performance (FRAP) factor of about 350 or less.” The patent identifies several types of filter media, including carbon filters.

The administrative law judge (ALJ) construed the term “filter usage lifetime claimed by a manufacturer or seller of the filter” to mean “the total number of gallons of water that a manufacturer or seller has validated can be filtered before the filter is replaced.” Based on this construction, the ALJ issued an initial determination finding that the asserted claims met the written description and enablement requirements.

Brita sought review of the initial determination before the full Commission. On review, the Commission reversed the ALJ’s finding of a violation, concluding that the “filter usage” term was indefinite, the asserted claims lacked adequate written description, and the claims were not enabled with respect to non-carbon block filters. Brita appealed.

To satisfy the written description requirement, a patent must demonstrate that the inventor was in possession of the claimed invention at the time of filing. This means the specification must adequately support each claim. In this case, the Federal Circuit found that the specification only supported carbon block filters meeting the claimed FRAP factor, not the broader category of “filter media” as claimed. As a result, the Court found that the asserted claims failed the written description requirement.

The Federal Circuit emphasized that the patent specification failed to support the broad claim language because of its narrow focus on carbon block filters. Specifically, the specification:

Described only carbon blocks, with other filter media mentioned solely as tested examples for FRAP factor
Provided specific formulations for carbon blocks only
Illustrated only carbon block filters in the figures
Made clear distinctions between carbon blocks and other filter types.

The Federal Circuit found persuasive the inventor’s testimony that only carbon block filters were created to meet the FRAP factor.

The Federal Circuit also affirmed the Commission’s finding that the claims were invalid for lack of enablement. Under the Federal Circuit’s 1988 In re Wands decision, enablement requires that a person of ordinary skill in the art be able to make and use the invention without undue experimentation. The Court found no reversible error in the Commission’s conclusion that undue experimentation would be required for filters other than carbon blocks to meet the claimed FRAP factor. The [...]

Continue Reading

Failure to reassess subject matter eligibility after similar claims invalidated justifies attorneys’ fees

by Amol Parikh | Oct 30, 2025 | Patents

Following a dismissal on the pleadings, the US District Court for the Southern District of New York granted the defendant’s motion for attorneys’ fees under 35 U.S.C. § 285 after concluding that the asserted patent was objectively invalid under 35 U.S.C § 101. Linfo, LLC v. Aero Global, LLC, Case No. 24-cv-2952 (S.D.N.Y. Oct. 15, 2025).

Linfo sued Aero Global alleging infringement of a patent directed to a system with methods and a user interface for discovering and presenting information in text content with different view formats. The patented system would allow a user to sort through online hotel reviews, for example, by toggling a button to show only positive comments, or only comments related to room service.

One week after filing its complaint, Linfo proposed an early-stage settlement of $49,000, which Aero Global did not accept. Subsequently, in a separate case involving the same patent, another judge in the Southern District of New York found the patent invalid. After Aero notified the court of the decision, Linfo sought to dismiss the case without prejudice, and Aero opposed. Linfo then requested a stay pending appeal of the other’s judge’s decision, which the court denied. Linfo then contacted Aero to propose the parties “walk away to close the matter.” Aero responded that it would agree to dismissal if Linfo reimbursed Aero for its fees incurred. Linfo did not respond, after which the court concluded that Linfo was collaterally estopped from asserting infringement of the patent and granted Aero’s motion for judgment on the pleadings.

Aero thereafter sought attorneys’ fees under § 285, arguing that the asserted patent was objectively invalid under § 101. The district court agreed, finding that the litany of cases published after the Supreme Court’s 2014 Alice v. CLS decision should have made clear to Linfo and its counsel that the asserted patent was directed precisely to the kind of abstract concept that Alice deemed unpatentable. Linfo argued that since the patent was issued after the Alice decision, it was reasonable for Linfo to assume the patent examiner considered Alice as part of the USPTO’s decision-making process. The district court rejected this argument, finding no evidence that the USPTO evaluated whether the patent was directed to patent eligible subject matter and, more importantly, finding that numerous cases post-dating the patent’s issuance invalidated patents similar to Linfo’s patent.

Linfo argued that it was reasonable for it to continue the case because it received favorable claim construction rulings and litigated against other defendants that had not filed § 101 challenges. The court rejected this argument, explaining that judicial construction of a patent claim after a claim construction hearing says little about whether that claim is eligible under § 101, given that claim construction and patent eligibility are distinct inquiries.

The court considered Linfo’s and its attorney’s litigation history and found several indicia suggesting that Linfo and its counsel brought this case to induce settlement rather than to reach the merits. The court noted that Linfo had asserted the challenged patent [...]

Continue Reading

When patent law meets free speech: Anti-SLAPP appellate jurisdiction

by Jodi Benassi | Oct 30, 2025 | Trade Secrets

The US Court of Appeals for the Federal Circuit determined that it had jurisdiction over an interlocutory appeal from a district court’s denial of a California anti-SLAPP (Strategic Lawsuit Against Public Participation) motion in a trade secret and inventorship case, finding such a denial was immediately appealable under the collateral order doctrine. On the merits, the Federal Circuit vacated and remanded the district court’s decision. IQE, plc v. Newport Fab, LLC, DBA Jazz Semiconductor, et al., Case No. 24-1124 (Fed. Cir. Oct. 15, 2025) (Hughes, Stark, Wang, JJ.)

IQE sued Jazz Semiconductor, Tower Semiconductor, and other entities and individuals (collectively, Tower) for violation of the Defend Trade Secrets Act, correction of inventorship under 35 U.S.C. § 256, and five claims arising under California state law, including trade secret misappropriation and intentional interference with prospective economic advantage. Tower moved to dismiss for failure to state a claim and simultaneously filed an anti-SLAPP motion to strike the claims for misappropriation and intentional interference arising under state law. The district court denied Tower’s motion to strike. Tower appealed to the US Court of Appeals for the Ninth Circuit.

The Ninth Circuit determined that under 28 U.S.C. § 1295(a) the Federal Circuit would have had jurisdiction at the time the appeal was filed. The Ninth Circuit explained that the Federal Circuit had subject matter jurisdiction over the appeal because the complaint asserted a claim for correction of inventorship, a cause of action arising under federal patent law. The Ninth Circuit further concluded that the Federal Circuit had appellate jurisdiction under Ninth Circuit law since the denial of an anti-SLAPP motion is an immediately appealable order under the collateral order doctrine. The Ninth Circuit therefore transferred the appeal to the Federal Circuit.

The Federal Circuit noted that the appeal raised a jurisdictional question of first impression: whether the Federal Circuit has jurisdiction over an appeal from a district court’s denial of an anti-SLAPP motion before entry of final judgment. The Federal Circuit agreed with the Ninth Circuit that it has subject matter jurisdiction over claims created by federal patent law. The Federal Circuit noted that appellate jurisdiction typically is limited to a final decision by the district court, but the collateral order doctrine provides a narrow exception that allows an interlocutory appeal when a trial court’s order affects rights that will be irretrievably lost in the absence of an immediate appeal. The Court analyzed the three collateral order factors and determined that an anti-SLAPP motion to strike under California law fits squarely within the collateral order exception to the final judgment rule.

IQE argued that jurisdiction was improper for two reasons:

IQE filed an amended complaint after Tower’s appeal, suggesting the district court must revisit the motion.
Some circuits have held that state anti-SLAPP statutes conflict with the Federal Rules of Civil Procedure.

The Federal Circuit rejected both arguments, finding the amended complaint improper under Ninth Circuit precedent and deferring to the Ninth Circuit’s view that California’s anti-SLAPP law applies in federal court. [...]

Continue Reading