With the “improper Markush grouping” rejection, U.S. patent examiners may reject claims reciting various alternative polynucleotide or polypeptide sequences. However, there is no per se rule that groupings of alternative...more
By recognizing a constitutional deficiency in the appointment of Patent Trial and Appeal Board (“PTAB”) judges, the Federal Circuit in Arthrex, Inc. v. Smith & Nephew, Inc., 941 F.3d 1320 (Fed. Cir. 2019) set the stage for...more