Top Brand LLC v. Cozy Comfort Company LLC, Appeal No. 2024-2191 (Fed. Cir. July 17, 2025) In this week’s Case of the Week, the Court of Appeals for the Federal Circuit held that prosecution history disclaimer applies to...more
Egenera, Inc. v. Cisco Systems, Inc., No. 2023-1428 (Fed. Cir. (D. Mass.) July 7, 2025). Opinion by Stark, joined by Prost and Taranto. Egenera owns a patent related to improved systems and methods for deploying and...more
The US Court of Appeals for the Federal Circuit affirmed a district court’s finding of noninfringement, concluding that the patent owner had improperly raised a claim construction issue for the first time on appeal – an...more
Alnylam Pharmaceuticals, Inc. v. Moderna, Inc., Appeal No. 2023-2357 (Fed. Cir. June 4, 2025) In this week’s Case of the Week, the Federal Circuit affirmed a final judgment that Moderna’s mRNA-based COVID-19 vaccine did...more
The US Court of Appeals for the Federal Circuit recently affirmed a summary judgment of no design patent infringement in North Star Tech. Int’l Ltd. v. Latham Pool Products, Inc., ruling that the patented and accused pool...more
Steuben Foods, Inc. v. Shibuya Hoppmann Corp., et al., No. 2023-1790 (Fed. Cir. (D. Del.) Jan. 24, 2024). Opinion by Moore, joined by Hughes and Cunningham. Steuben sued Shibuya for infringement of three patents relating to...more
The US Court of Appeals for the Federal Circuit affirmed a district court judgment of noninfringement, finding that deleting a portion of a definition between a provisional application and a nonprovisional application was...more
Addressing for the first time the issue of whether bioequivalence data and in vitro testing can show that an abbreviated new drug application (ANDA) product with different immediate and delayed release portions infringed on a...more
DDR Holdings, LLC v. Priceline.com LLC, Appeal Nos. 2023-1176, -1177 (Fed. Cir. Dec. 9, 2024) In our Case of the Week, the Federal Circuit affirmed a stipulated non-infringement judgment from Delaware’s district court,...more
Mirror Worlds Technologies, LLC ("Mirror Worlds") owns U.S. Patent Nos. 6,006,227; 7,865,538; and 8,255,439, which claim methods for storing, organizing, and presenting data in time-ordered streams on a computer system. In...more
Mirror Worlds Technologies, LLC v. Meta Platforms, Inc., Appeal Nos. 2022-1600, -1709 (Fed. Cir. Dec. 4, 2024) In this appeal from the United States District Court for the Southern District of New York, the Federal...more
The US Court of Appeals for the Federal Circuit vacated a district court’s final judgment of noninfringement, finding that the district court improperly narrowed the constructions of certain claim terms to particular features...more
On February 9, in University of South Florida Board of Trustees v. United States, the Federal Circuit upheld royalty-free license rights of the U.S. government over a University of South Florida (USF) patent directed to...more
PersonalWeb—the third appeal from a multidistrict litigation involving alleged infringement of PersonalWeb’s patents—addressed two issues: (1) whether the district court abused its discretion in finding the case exceptional...more
The US Court of Appeals for the Federal Circuit reversed and remanded a district court’s claim construction and related summary judgment rulings after determining that the district court erred in construing a claim term by...more
The US Court of Appeals for the Federal Circuit vacated a stipulated judgment of noninfringement in a patent infringement dispute after construing a disputed claim term, taking a more literal approach than the district court...more
Sequoia Technology, LLC v. Dell, Inc., Appeal Nos. 2021-2263, -2264, -2265, -2266 (Fed. Cir. April 12, 2023) In an appeal from a stipulated judgment of noninfringement and invalidity following an adverse claim construction...more
The US Court of Appeals for the Federal Circuit affirmed a jury’s noninfringement verdict, finding that the district court correctly interpreted the article “a” and antecedent “said” in the asserted claims to require that a...more
Apple Inc. v. Vidal, Appeal No. 2022-1249 (Fed. Cir. Mar. 13, 2023) In our Case of the Week, the Federal Circuit allowed Apple’s challenge to the Patent Trial and Appeal Board’s (“PTAB”) Fintiv rules to proceed, at least...more
Last year, in our inaugural issue of “The Year in Review,” we reported that since the landmark jury verdict in the IP litigation between Apple and Samsung in 2012, which awarded more than $1B to Apple for infringement of...more
The US Court of Appeals for the Federal Circuit affirmed a US International Trade Commission (Commission) decision that found no violation of Section 337 due to noninfringement. The Court disagreed with the Commission that...more
MITEK SYS., INC. V. UNITED SERVS. AUTO. ASS’N - Before Dyk, Taranto, and Cunningham. Appeal from the U.S. District Court for the Eastern District of Texas. Summary: Declaratory judgment plaintiffs must identify...more
APPLE INC. v. ZIPIT WIRELESS, INC. [OPINION]- PRECEDENTIAL - Before Hughes, Mayer and Stoll. Appeal from the United States District Court for the Northern District of California. Summary: Notice letters and related...more
ROCHE DIAGNOSTICS CORPORATION v. MESO SCALE DIAGNOSTICS, LLC - Before Newman, Prost, and Taranto. Appeal from the U.S. District Court for the District of Delaware. Summary: A finding of inducing infringement requires...more
Littelfuse, Inc. v. Mersen USA EP Corp., Appeal No. 2021-2013 (Fed. Cir. Apr. 4, 2022) - Our Case of the Week focuses on the issue of claim construction, and, more specifically, the doctrine of claim differentiation....more