IPVX Sues HP with Visual Voicemail Patent

  • January 17, 2013

IPVX Patent Holdings filed suit against Hewlett Packard alleging that the sale of HP’s enterprise messaging products which allow users to visually identify and selectively listen to their voice messages via a mobile phone or computer infringes a patent related to video voicemail (5,572,576). IPVX has filed over 25 prior suits since November 2011 against other VoIP providers, including 8×8, Apple, Alcatel-Lucent, Cisco, HTC, and Oracle. The patent-in-suit was invented by Robert Hotto and Judah Klausner, founder of Klausner Technologies and inventor of the PDA, and originated with Visual Access Technologies before being assigned to IPVX in May 2012. That same month, Klausner Technologies assigned all rights to the ’576 patent to IPVX.   1/14, Eastern District of New York, assigned to Judge Kiyo A. Matsumoto and referred to Chief Magistrate Judge Steven M. Gold, 1:2013cv00215.


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