( July 15, 2025, 12:59 PM EDT) -- WASHINGTON, D.C. — The U.S. Patent Trial and Appeal Board (PTAB) should have found all claims of a patent related to a cardiovascular catheter device to be unpatentable as obvious, a Federal Circuit U.S. Court of Appeals panel held July 14, affirming the bulk of the board’s findings but reversing as to a single claim PTAB did not invalidate....