( November 5, 2025, 1:53 PM EST) -- WASHINGTON, D.C. — A U.S. Patent and Trademark Office (PTO) Appeals Review Panel (ARP) vacated a U.S. Patent Trial and Appeal Board (PTAB) panel’s new ground of rejection for claims of an artificial intelligence inventor’s patent application regarding a machine learning patent as directed at an abstract idea in a Nov. 4 precedential decision; the APR left in place, however, the PTAB panel’s affirmation of a PTO examiner’s rejection of the application’s claims as obvious....