( July 24, 2025, 2:55 PM EDT) -- WASHINGTON, D.C. — A Federal Circuit U.S. Court of Appeals panel held that there was no error in the U.S. Patent Trial and Appeal Board’s (PTAB) finding that an appellant patent owner’s patent for an invention that applied to transfers of data between gaming machines was invalid as obvious; the panel also found “no shenanigans” in the decision not to apply interference estoppel....