( September 2, 2026, 8:06 AM EDT) -- WASHINGTON, D.C. — The U.S. Patent Trial and Appeal Board (PTAB) had substantial evidence to support its factual findings that underpinned its ruling that Robert Bosch LLC and Mercedes-Benz USA LLC (collectively, Bosch) failed to show that claims of patents describing fuel injector products were unpatentable as obvious, a Federal Circuit U.S. Court of Appeals panel held....