In Valve Corporation v. Ironburg Inventions Ltd., [2020-1315, 2020-1316, 2020-1379] (August 17, 2021), the Federal Circuit affirmed in part, reversed in part, vacated in part, and remanded two PTAB decisions determining that some claims of U.S. Patent No. 9,289,688 were … Continue reading Wayback Machine Helps Prove Exhibit was Prior Art