The Technology & Information Law Blog

Analysis by Charles Gideon Korrell

Tag: claim construction

  • Wash World v. Belanger: Federal Circuit Vacates Convoyed-Sales Damages

    Wash World v. Belanger: Federal Circuit Vacates Convoyed-Sales Damages

    The Federal Circuit issued a split ruling in Wash World Inc. v. Belanger Inc., affirming the district court’s judgment of infringement but vacating the lost profits damages award due to improper inclusion of convoyed sales. The case presents key takeaways on claim construction waiver, convoyed sales damages, and preserving post-trial remedies, with important implications for…

  • Maquet v. Abiomed: Scope of Prosecution Disclaimer

    Maquet v. Abiomed: Scope of Prosecution Disclaimer

    On March 21, 2025, the Federal Circuit vacated a district court judgment of non-infringement and remanded the case for further proceedings in Maquet Cardiovascular LLC v. Abiomed Inc. (No. 23-2045). The opinion focuses on the claim construction of U.S. Patent No. 10,238,783 (the “’783 patent”), specifically the proper application of the prosecution disclaimer doctrine and…

  • Regeneron v. Amgen: Patent Infringement and Biologic Formulations

    Regeneron v. Amgen: Patent Infringement and Biologic Formulations

    On March 14, 2025, the United States Court of Appeals for the Federal Circuit issued a decision in Regeneron Pharmaceuticals, Inc. v. Amgen Inc., affirming the district court’s denial of a preliminary injunction sought by Regeneron. This ruling is significant in the realm of the biologic pharmaceutical industry, as it centers on claim construction and…

  • In re Xencor: Written Description and Preamble Limitations

    In re Xencor: Written Description and Preamble Limitations

    On March 13, 2025, the United States Court of Appeals for the Federal Circuit issued a decision in In re Xencor, Inc., affirming the rejection of Xencor’s patent application for failing to meet the written description requirement under 35 U.S.C. § 112. This case raises important considerations regarding patent claim construction, particularly the treatment of…

  • Sierra Wireless v. Sisvel: (Dis)Qualification of Expert Witnesses in the PTAB

    Sierra Wireless v. Sisvel: (Dis)Qualification of Expert Witnesses in the PTAB

    In its March 10, 2025 decision in Sierra Wireless, ULC v. Sisvel S.p.A., the Federal Circuit vacated a Patent Trial and Appeal Board (PTAB) decision due, in part, to the improper reliance on an expert witness who was not shown to possess the qualifications of a person of ordinary skill in the art (POSITA). For…

  • Federal Circuit Revives Patent Infringement Case Over Quick-Release Tactical Vest System

    In a recent decision, the United States Court of Appeals for the Federal Circuit vacated a district court’s summary judgment ruling of noninfringement in IQRIS Technologies LLC v. Point Blank Enterprises, Inc., and National Molding, Inc. The ruling focuses on a dispute over the proper interpretation of the term “pull cord” in IQRIS Technologies’ patents…

  • Court of Appeals Decision in Lashify, Inc. v. International Trade Commission: Key Takeaways

    On March 5, 2025, the United States Court of Appeals for the Federal Circuit issued a decision in Lashify, Inc. v. International Trade Commission, a case concerning intellectual property rights in the context of international trade and the domestic industry requirement under Section 337 of the Tariff Act of 1930. The ruling has significant implications…

  • Federal Circuit Upholds Patentability of Stem Cell Technology in Restem v. Jadi Cell

    The United States Court of Appeals for the Federal Circuit recently issued a significant ruling in Restem, LLC v. Jadi Cell, LLC, upholding the validity of Jadi Cell’s U.S. Patent No. 9,803,176. This case, which originated from an inter partes review (IPR) before the Patent Trial and Appeal Board (PTAB), revolved around whether Restem could…

  • Federal Circuit Weighs in on Gesture-Based Patent Dispute: Key Takeaways for IP Law

    The Federal Circuit’s recent decision in Apple Inc. v. Gesture Technology Partners, LLC (March 2025) provides important insights into patent law, particularly in the context of inter partes review (IPR) proceedings and obviousness determinations. This ruling builds on the court’s earlier January 2025 decision in another dispute involving Gesture Technology Partners, reinforcing key legal principles…

  • Patent Litigation and Expert Testimony: Lessons from Trudell v. D R Burton

    The recent decision in Trudell Medical International Inc. v. D R Burton Healthcare, LLC by the United States Court of Appeals for the Federal Circuit highlights significant issues in intellectual property law, particularly in the realm of patent litigation. This case, which revolves around the infringement of U.S. Patent No. 9,808,588, serves as a critical…