Mealey's ( April 3, 2023, 12:56 PM EDT) -- WASHINGTON, D.C. — A limited exclusion order barring Philip Morris USA Inc. and its affiliates from importing various tobacco heating products that infringe two R.J. Reynolds Tobacco Co. patents was upheld March 31 by the Federal Circuit U.S. Court of Appeals, which said a challenge to the validity of the patents fails....