In the wake of several favorable Patent Trial and Appeal Board (PTAB) decisions, Straight Path IP Group, Inc. has refiled cases that it had earlier withdrawn, against Avaya (3:16-cv-03459) and Cisco (5:16-cv-03463) in the Northern District of California and against Verizon (Cellco) (1:16-cv-04236) in the Southern District of New York. All three complaints assert three VoIP patents (6,108,704; 6,131,121, 6,701,365), with a fourth patent (6,009,469) from the same 11-member family asserted against Avaya and Cisco. Those favorable PTAB decisions came in response to several of the over 25 petitions for inter partes review (IPR) filed, joining one re-examination certificate for each of five of the patents-in-suit, which have been asserted in two campaigns stretching back almost exactly a decade.