Federal Circuit Denies Mandamus Over Rejected IPR Petition In Web Patent Row

( December 10, 2025, 2:23 PM EST) -- WASHINGTON, D.C. — A company that unsuccessfully challenged website-building patents owned by another entity before the U.S. Patent Trial and Appeal Board (PTAB) saw its petition for a writ of mandamus denied by a Federal Circuit U.S. Court of Appeals panel on Dec. 9; the panel held that the petitioner failed to show any justifiable reason to order the U.S. Patent and Trademark Office (PTO) to institute inter partes review (IPR)....