Federal Circuit: PTAB’s Construction Error Meant It Wrongly Found Validity

( April 2, 2025, 2:11 PM EDT) -- WASHINGTON, D.C. — A Federal Circuit U.S. Court of Appeals panel held that the U.S. Patent Trial and Appeal Board (PTAB) should have gone further with a finding of invalidity for claims within patents related to interactive display screens, considering arguments connected to inter partes review (IPR) proceedings initiated by Samsung Electronics Co. Ltd. and an affiliated entity for the second time in recent weeks....