Tag: anticipation
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Board of Regents v. Boston Scientific: Federal Circuit Reverses Jury Verdict on Anticipation and the Meaning of “Fiber”
The Federal Circuit’s decision in Board of Regents of the University of Texas System v. Boston Scientific Corp., Case Nos. 2024-2062 and 2024-2063 (Fed. Cir. July 27, 2026), reverses a patent-infringement judgment involving drug-eluting coronary stents and illustrates how a jury verdict cannot survive when the asserted distinctions from the prior art are absent from…
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Ironburg v. Valve: Federal Circuit Clarifies How Parties Must Prove IPR Estoppel Under §315(e)
The Federal Circuit’s decision in Ironburg Inventions Ltd. v. Valve Corp., Case No. 2024-2088 (Fed. Cir. June 18, 2026), limits when a patent owner may use inter partes review estoppel to prevent an accused infringer from asserting prior-art invalidity grounds in district court. The court held that a reference is not necessarily discoverable merely because…
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In re Gesture Technology: IPR Estoppel Stops at the PTAB Door, Not Ex Parte Reexamination
The Federal Circuit’s December 1, 2025 decision in In re Gesture Technology Partners, LLC, Appeal No. 2025-1075, delivers a clean and consequential message on two recurring pressure points in post-grant practice: the reach of inter partes review (IPR) estoppel under 35 U.S.C. § 315(e)(1), and the Patent Office’s authority to continue adjudicating validity in ex…
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Sigray, Inc. v. Carl Zeiss X-Ray Microscopy, Inc.: Inherent Anticipation Requires Full Scope of the Claim
In a decision clarifying the boundaries between claim construction and factual findings of inherency, the Federal Circuit in Sigray, Inc. v. Carl Zeiss X-Ray Microscopy, Inc., No. 23-2211 (Fed. Cir. May 23, 2025), reversed the PTAB’s determination that certain claims of U.S. Patent No. 7,400,704 were not anticipated by the prior art. The court concluded…
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Sage Products, LLC v. Stewart: “Sterile” Label in UK Document Found to Anticipate U.S. “Sterilized” Patent Claims
In Sage Products, LLC v. Stewart, No. 2023-1603 (Fed. Cir. Apr. 15, 2025), the Federal Circuit affirmed the Patent Trial and Appeal Board’s (PTAB) finding that all challenged claims of Sage’s U.S. Patent Nos. 10,398,642 and 10,688,067 were unpatentable due to anticipation and obviousness. The ruling centered on whether a UK public assessment report (PAR)…
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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…