On April 3, 2023, the Federal Circuit issued an opinion in Ironburg Inventions Ltd. v. Valve Corp., addressing the scope of what invalidity grounds are subject to estoppel pursuant to 35 U.S.C. § 315(e)(2).
On April 3, 2023, the Federal Circuit issued an opinion in Ironburg Inventions Ltd. v. Valve Corp., addressing the scope of what invalidity grounds are subject to estoppel pursuant to.