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Patent Validity

197 published works

  1. ILN IP Insider

    Can Design Patents Be Invalidated?

    By Daniel H. Bliss of Howard & Howard

    Suppose you have a design for an ornamental appearance of an article and start producing the article. Subsequently, you receive notice from an owner of a design patent that you…

  2. PTABWatch

    Court Limits Collateral Estoppel Based on PTAB Decisions

    By Michael R. Weiner

    In ParkerVision, Inc. v. Qualcomm Inc., No. 2022-1755, -2221 (Fed. Cir. Sept. 6, 2024) (“ParkerVision III”), the Federal Circuit held that, due to the difference in burdens of proof in…

  3. The Contingency

    Commercial Roundup – September 18, 2024

    By Barry Barnett

    Welcome to the end-of-summer issue of Commercial Roundup--a collection of the most important appellate decisions for commercial litigators and trial lawyers by the U.S. Supreme Court, the 13 U.S. Courts…

  4. China Law Insight

    内外资公平性检验:中国药品专利无效实证分析

    By King & Wood

    作者:白建民 马俊豪 姜鹏义 制药行业作为投入高、研发周期长的产业,原研药厂必须依靠专利来维持市场的排他性地位。药品专利在为药厂提供市场竞争优势的同时,也保障了研发投入的回报,激励了药厂的持续创新活动。药品专利的授权与确权,构成了医药领域创新保护机制的两个关键方面,它们共同塑造了药品市场的法律环境和竞争格局。 阅读更多

  5. Big Molecule Watch

    District Court Grants Summary Judgment and Invalidates Patent in REGENXBIO v. Sarepta Litigation

    By Sabrina Poulos|Stephanie Dusaban Gonzales

    On January 5, 2024, in litigation between REGENXBIO and Sarepta Therapeutics, Judge Richard Andrews of the U.S. District Court for the District of Delaware District Court granted summary judgment for…

  6. Intellectual Property Law Blog

    Sisvel International S.A. v. Sierra Wireless, Inc., No. 2022-1387, 2022-1492 (Fed. Cir. Sept 1, 2023)

    By Joshua Weisenfeld, Amanda Hamelin

    This case addresses the validity of two patents asserted against wireless communications technologies. In particular, this case discusses claim construction and post-issuance claim amendments that broaden the scope of challenged claims.…

  7. Virginia Rocket Docket Blog

    EDVA Judge Rules That Geolocation Patents Are Invalid Under 35 U.S.C. § 101

    By Dabney J. Carr

    On September 18, in identical opinions issued in separate cases against Google and Apple, EDVA District Judge Michael Nachmanoff ruled that four patents directed toward geolocation of mobile devices claimed…

  8. Patent Challenges

    Don’t Xerox conclusory assertions in the expert declaration

    By Michael Pohl (US)

    Expert testimony can be critical to support or defend against invalidity challenges in AIA trials, but must be adequately explained to be effective.  In Xerox Corp. v. Bytemark, Inc., IPR2022-00624,…

  9. China IP Legal Report

    <em>The Regents of the University of California v. the CNIPA</em>, No. 5353 [2019], Trial, Administrative Division, Beijing Intellectual Property Court

    By Yingli Wang, Perkins Coie

    On December 29, 2021, the Beijing Intellectual Property Court (the Court) maintained the validity of CN Invention Patent No. ZL200680025545.1 (the ’545 patent), which reversed an invalidation decision[1] made by…

  10. Big Molecule Watch

    PTAB Issues Final Written Decisions Finding Claims of Regeneron’s Aflibercept Patents Invalid

    By Christopher Cassella

    On November 9, 2022, the PTAB issued final written decisions in IPR2021-00880 and IPR2021-00881, filed by Mylan on two Regeneron patents related to aflibercept—U.S. Patent Nos. 9,254,338 and 9,669,069.  The PTAB…