( July 2, 2026, 11:18 AM EDT) -- WASHINGTON, D.C. — The U.S. Supreme Court on June 29 denied an inventor’s petition for a writ of certiorari in which he argued that the Federal Circuit U.S. Court of Appeals wrongly upheld a District of Columbia federal judge’s finding that prosecution laches barred the inventor’s patent applications; the high court decided against hearing the inventor’s arguments that the U.S. Patent and Trademark Office (PTO) cannot use judge-made prosecution laches to deny patents when the applicant complied with Congress’s timing rules....