The U.S. Court of Appeals for the Federal Circuit (CAFC) issued a decision today in Robert Bosch LLC, Mercedes-Benz USA, LLC v. Westport Fuel Systems Canada Inc., affirming two Patent Trial and Appeal Board (PTAB) final written decisions that found Robert Bosch and Mercedes-Benz USA failed to prove challenged claims of two fuel injector patents would have been obvious. The court rejected arguments that the PTAB lacked substantial evidence to find that a prior art reference disclosed a flexible membrane capable of flexing during actuation, thereby failing to meet a specific hydraulic link limitation. The post CAFC Affirms PTAB Decisions Upholding Fuel Injector Patent Claims appeared first on IPWatchdog.com | Patents & Intellectual Property Law .