Empire IP Affiliate Targets Mobile Communications Handoff Procedures of AT&T and T-Mobile

  • August 25, 2017

An affiliate of Empire IP LLC has kicked off a new campaign, asserting a “vertical handoff” patent in separate suits against AT&T (2:17-cv-04990) and T-Mobile (2:17-cv-04992). Vertical Connection Technologies LLC, formed by Empire IP principals Daniel Mitry and Timothy Salmon this past March, accuses each defendant of infringement through the provision of features within their networks that allow cellular calls to be handed off to Wi-Fi, and vice-versa.


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