Assignor Estoppel Doctrine Is Not a Federal Cause of Action, Federal Circuit Affirms
Semiconductor Energy Laboratory Co. v. Nagata
By Erica Larson – Edited by Suzanne Van Arsdale
The Court of Appeals for the Federal Circuit affirmed the judgment of the Northern District of California, which ruled that plaintiff Semiconductor Energy Laboratory Co. (“SEL”) could not establish federal jurisdiction over defendant Dr. Yujiro Nagata. The courts rejected a novel offensive application of assignor estoppel, traditionally a defense.Read More...