The Patent Trial and Appeal Board (PTAB) saw activity in August 2018 involving a variety of frequent litigants. This included petitions for inter partes review (IPR) filed against two NPEs controlled by Fortress Investment Group LLC, INVT SPE LLC and Uniloc 2017 LLC, the latter of which has in recent months cofiled a barrage of lawsuits with subsidiaries of Australian NPE Uniloc Corporation Pty. Limited (Uniloc). The PTAB also instituted trial in August for IPRs against Uniloc 2017 and some of its campaign coplaintiffs, and in an IPR against an NPE controlled by patent attorney Brian Yates, whose US litigation has waned as he pursues a new patent licensing initiative through his company iPEL, Inc. Finally, the PTAB issued final decisions in August for IPRs against Uniloc, Empire IP LLC, and Quarterhill Inc.