Estoppel Doctrine in China's Patent System
On the same day that the Supreme Court upheld the constitutionality of inter partes reviews, it ruled in SAS Institute Inc. v. Iancu that the United States Patent and Trademark Office wrongly implemented regulations allowing...more
On September 9, 2017, an Eastern District of Texas magistrate judge issued a report and recommendation holding that a plaintiff was estopped from asserting its patent infringement claims because statements made in response to...more
Since the Federal Circuit’s decision in Shaw Indus. Grp., Inc. Automated Creel Sys., Inc., 817 F.3d 1293 (Fed. Cir. 2016), district courts have been finding no estoppel in court proceedings for invalidity positions that were...more