Mealey's (April 8, 2022, 12:27 PM EDT) -- WASHINGTON, D.C. — The Patent Trial and Appeal Board wrongly upheld as patentable various claims of a method of encryption key distribution, basing its ruling in part on an erroneous, sua sponte claim construction that read in an extra limitation to artificially narrow the claims, Netflix Inc. maintains in a March 21 appeal to the Federal Circuit U.S. Court of Appeals....