Matt Johnson is one of the Jones Day’s primary contacts on practice before the United States Patent and Trademark Office's (USPTO) Patent Trial and Appeal Board (PTAB), where patentability of issued patents can be challenged. Currently chairing the Firm's PTAB area and involved in proceedings at the Board, including trials for inter partes review (IPR) and post-grant review (PGR), since the first day of their availability in September 2012, Matt regularly represents clients as both petitioners and patent owners at the Board. He further works as an advocate for clients in appeals from Board proceedings at the Federal Circuit. Matt is the administrator of Jones Day's PTAB Litigation Blog.