Mealey's (March 24, 2023, 9:48 AM EDT) -- WASHINGTON, D.C. — The Federal Circuit U.S. Court of Appeals in a March 23 order denied a petition for writ of mandamus by the Massachusetts Institute of Technology and a patent licensee that would direct the U.S. Patent and Trademark Office (PTO) Patent Trial and Appeal Board to terminate inter partes reviews (IPR) of their engine efficiency technology....