Estech Systems Files Second Round of Suits over VoIP and Voicemail Systems

August 26, 2020

Telecommunications equipment manufacturer Estech Systems, Inc. has expanded its sole litigation campaign, begun this past April, with new suits suit against Burnco Rock Products (Burnco Texas) (2:20-cv-00275), Burrow Global (2:20-cv-00276), Hancock Whitney (Hancock Whitney Bank) (2:20-cv-00277), and U.S. Dermatology Medical Management (d/b/a U.S. Dermatology Partners) (2:20-cv-00278) in the Eastern District of Texas and against Energy Transfer (6:20-cv-00773), Gensler Architecture (M. Arthur Gensler Jr. & Associates) (6:20-cv-00774), Howard Midstream Energy Partners (6:20-cv-00777), HWC Wire & Cable (6:20-cv-00776), and SWBC Mortgage (6:20-cv-00778) in the Western District of Texas. Each defendant is accused of infringing various combinations of four Voice over Internet Protocol (VoIP) patents through their respective VoIP and voicemail systems.

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