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Patent Right Evaluation Report in China’s Patent System
Stages of Patent Invalidation Proceedings
Recently, the Patent Trial and Appeal Board (“the Board”) was persuaded to consider the merits of three out of seven concurrent petitions for an inter partes review of a single patent due to the patent’s complicated claiming...more
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 patent-ineligible...more
Who Bears the Burden of Proof for IPR Estoppel? In Ironburg Inventions Ltd. v. Valve Corp., Appeal No. 21-2296, the Federal Circuit held that the patentee has the burden of proving that invalidity grounds not raised in a...more
Caltech sued Broadcom and Apple for infringement, asserting three of its data transmission patents against Broadcom’s WiFi chips and certain Apple products that incorporate those chips. Apple then filed IPR petitions...more
As part of the recovery from the global COVID-19 pandemic, the U.S. Court of Appeals for the Federal Circuit took steps to return to normal operations. It began requiring live oral arguments in August 2022 and, by November,...more
On February 4, 2022, the Federal Circuit clarified that IPR estoppel extends to all claims and invalidity grounds that the petitioner could have reasonably asserted in its IPR petition. ...more
APPLE INC. V. WI-LAN INC. Before Moore, Chief Judge, Bryson, and Prost. Appeal from the United States District Court for the Southern District of California. Summary: Construing a broad claim term to be re-defined as...more