Tag: Patents
Single Sign-On Patent Faces Mixed Results in Tech Showdown
December 9, 2025
IBM v. Zillow Grp., Inc. Authored by: Jeremy J. Gustrowsky A recent decision from the Federal Circuit highlights the complexities of patent challenges in the world of digital authentication. The case revolved around U.S. Patent No. 7,631,346, owned by International…
Read MoreCourt Revives Patent Dispute Over Facebook Lead Ads and Targeted Advertising
December 5, 2025
Adnexus Inc. v. Meta Platforms, Inc Authored by: Jeremy J. Gustrowsky A recent Federal Circuit decision has breathed new life into a patent dispute between Adnexus Inc. and Meta Platforms, Inc. (the parent company of Facebook), focusing on the technology…
Read MorePatent Invalidated: Written Description and Enablement Requirements Sink High-Profile Cancer Drug Dispute
December 2, 2025
Seagen Inc. v. Daiichi Sankyo Co., Ltd. Authored by: Jeremy J. Gustrowsky A recent decision from the Federal Circuit has brought clarity to the requirements for written description and enablement in patent law, with significant implications for pharmaceutical and biotech…
Read MoreWho Is the Inventor When AI Is Involved? USPTO Issues New Guidance on AI-Assisted Inventions
November 28, 2025
Revised Inventorship Guidance for AI-Assisted Inventions Authored by: Jeremy J. Gustrowsky The United States Patent and Trademark Office (USPTO) recently released revised guidance clarifying how inventorship should be determined for inventions created with the help of artificial intelligence (AI). This…
Read MoreCourt Finds “Optimal” and “Best” Patent Claims Too Vague for Enforcement
November 25, 2025
Akamai Techs., Inc. v. Mediapointe, Inc. Authored by: Jeremy J. Gustrowsky A recent decision highlights the importance of clear and objective language in patent claims, especially when using terms of degree like “optimal” or “best.” In a dispute between Akamai…
Read MoreFederal Circuit Clarifies Patent Claim Construction in Railroad Car Dispute
November 19, 2025
Nat’l Steel Car Ltd. v. Greenbrier-Concarril LLC Authored by: Jeremy J. Gustrowsky In a recent decision, the Federal Circuit affirmed a district court’s ruling that Greenbrier-Concarril LLC did not infringe two patents owned by National Steel Car Ltd. (NSC) related…
Read MorePatent Invalidated: Federal Circuit Reverses $39 Million Hair Loss Drug Verdict Over Written Description
November 18, 2025
Duke Univ. v. Sandoz Inc Authored by: Jeremy J. Gustrowsky In a major decision for pharmaceutical patents, the Federal Circuit reversed a $39 million jury verdict in favor of Duke University and Allergan Sales, LLC, finding that claim 30 of…
Read MorePatent Office’s Discretion in IPR Decisions Upheld: No Mandamus Relief for Motorola
November 6, 2025
In re Motorola Sols., Inc Authored by: Jeremy J. Gustrowsky In a recent decision, the Federal Circuit denied Motorola Solutions, Inc.’s attempt to overturn the Patent Office’s (USPTO) decision to end several inter partes review (IPR) proceedings involving patents challenged…
Read MoreWho Counts as an Inventor? Federal Circuit Clarifies “By Another” Prior Art Rule in Merck v. Hopewell
October 30, 2025
Merck Serono S.A. v. Hopewell Pharma Ventures, Inc Authored by: Jeremy J. Gustrowsky The Federal Circuit recently clarified when a prior publication counts as “prior art” against a patent with overlapping inventors. In Merck Serono S.A. v. Hopewell Pharma Ventures,…
Read MorePatent Board Faulted for Failing to Explain Its Reasoning in Network Security Patent Challenge
October 22, 2025
Palo Alto Networks, Inc. v. Centripetal Networks, LLC Authored by: Jeremy J. Gustrowsky In a recent decision, the Federal Circuit vacated and remanded a Patent Trial and Appeal Board (PTAB) ruling after finding that the Board failed to adequately explain…
Read MorePatent Board Must Consider Evidence of Copying, Says Federal Circuit in Centripetal v. Palo Alto Networks
October 22, 2025
Centripetal Networks, LLC v. Palo Alto Networks, Inc Authored by: Jeremy J. Gustrowsky In a recent decision, the Federal Circuit vacated a Patent Trial and Appeal Board (PTAB) ruling in the dispute between Centripetal Networks, LLC and Palo Alto Networks,…
Read MoreIPR Decisions Don’t Automatically Invalidate Patent Claims in District Court, Says Federal Circuit
October 15, 2025
Inland Diamond Prods. Co. v. Cherry Optical Inc Authored by: Jeremy J. Gustrowsky In a significant decision for patent owners and challengers alike, the Federal Circuit in Inland Diamond Products Co. v. Cherry Optical Inc. clarified that findings from Patent…
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