( October 23, 2025, 1:39 PM EDT) -- WASHINGTON, D.C. — A Federal Circuit U.S. Court of Appeals panel said Oct. 22 that it saw no error in the U.S. Patent Trial and Appeal Board’s (PTAB) analysis of the recusal of an administrative patent judge (APJ) after the institution of inter partes review (IPR) for a cybersecurity patent; the panel also held, though, that PTAB failed to fully consider evidence on copying provided by the appellant patent holder....