May 14, 2026
U.S. Patent and Trademark Office Director John Squires has de-instituted a Patent Trial and Appeal Board review after National Steel Car Ltd. disclaimed the only parts of its patent the board thought could be invalid, saying they should "be treated as though they never existed."
October 11, 2025
Deputy U.S. Patent and Trademark Office Director Coke Morgan Stewart rejected 37 Patent Trial and Appeal Board petitions Friday night, but allowed 17 challenges to proceed.