Patents Post-GrantAmendments at the PTAB Hamstrung by Litigation Realities By Scott McKeown & Scott McKeown Wolf Greenfield August 20, 2018 Agency Still Responding to Criticism on Amendment Difficulty A constant criticism of the Patent Trial & Appeal Board (PTAB) has been the perceived difficulty in amending claims in an AIA trial proceeding. In response, the PTAB has pointed out that…