PTAB Strategies and Insights - May 2021: Federal Circuit Starts to Clarify Section 325(e)(2) Estoppel
By EsqSocial Corporation 08/06/21
In Olaplex, Inc. v L’Oréal USA, Inc. the Federal Circuit addressed, among other issues, PGR estoppel in subsequent district court litigation. Here, the Court addressed the timing to raise estoppel regarding written description and obviousness after a Board’s final written decision (FWD). Olaplex raised Section 325(e)(2) estoppel in a letter to the Federal Circuit during appeal. Olaplex, Inc. v L’Oréal USA, Inc., Case No. 2020-1282, Slip Op. at 23-25 (Fed. Cir. May 6, 2021). The Board issued its...
By: Sterne, Kessler, Goldstein & Fox P.L.L.C.