Interference Estoppel Precludes All Arguments That Could Have Been Raised
By EsqSocial Corporation 19/04/21
This blog has previously discussed the effect of several different types of estoppel. See, e.g., Estoppel Estopped for Remanded Claims, Reminder: Estoppel May Not Preclude Prior-Art Systems, and PGR Estoppel Applies to Unasserted Art. Recently, the PTAB again took up the issue of estoppel, this time defining the scope of interference estoppel under 37 C.F.R. § 41.127(a). The Chemours Company FC, LLC v. Mexichem Amanco Holdings SA, DE C.V., IPR2020-01667, Paper No. 10 (PTAB March 25, 2021)....
By: Jones Day