Earlier this month, Celltrion, Inc. (“Celltrion”) filed a copycat IPR petition directed against U.S. Patent No. 7,976,838 (“the ʼ838 patent”) that is essentially identical to a petition filed by Pfizer, Inc. (“Pfizer”). The PTAB recently instituted review of the ʼ838 patent based on Pfizer’s petition in IPR2017-01923. Celltrion’s copycat petition was accompanied by a motion
