PTAB Sees Activity in Long-Running, Convoluted Campaigns in May 2018

June 8, 2018

Throughout May 2018, the Patent Trial and Appeal Board (PTAB) saw activity in multiple long-running campaigns, including challenges brought against patents and plaintiffs with colorful and tangled litigation histories. The Board saw petitions for AIA review brought in May against Publishing Technologies LLC, an NPE controlled by patent attorney and frequent litigant Bradley D. Liddle; in the mobile devices campaign waged by AGIS Software Development LLC; and in the networking campaign brought by XR Communications, LLC. Also in May, the Board instituted trial for inter partes reviews (IPRs) against Iridescent Networks, Inc. and Oyster Optics, LLC. Final decisions issued in May include three against prolific plaintiff Realtime Data LLC, which saw claims cancelled from one of its data compression patents while another two survived unscathed, as well as final decisions cancelling claims from patents held by General Patent Corporation and VirnetX Holding Corporation.

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