( September 21, 2026, 11:46 AM EDT) -- WASHINGTON, D.C. — A Federal Circuit U.S. Court of Appeals panel vacated a decision by the U.S. Patent Trial and Appeal Board (PTAB) that affirmed a patent examiner’s rejection of a claim in a patent describing a catheter device, finding that PTAB’s “incorrect construction of ‘flow barrier’ impaired its obviousness analysis.”...