In Sanofi-Aventis Deutschland GMBH v. Mylan Pharms, Inc., No. 21-1981 (Fed. Cir. May 9, 2023), the Federal Circuit reversed the PTAB’s finding that Sanofi’s patent claims were obvious, determining the PTAB used the wrong test for deciding whether an existing patent was “analogous” to the one being challenged.
Mylan Pharmaceuticals had asserted all claims