AIM IP filed seven separate suits against Aastra, AudioCodes, Digium, Obihai Technology, Patton Electronics, Clearone, and Media5 alleging that the defendants’ VoIP products or services infringe a patent related to VoIP phone technology (5,920,853). In April 2011, AIM IP asserted its first patent infringement campaign against Avaya, Cisco, D-Link,HP, and others. The non-practicing entity last filed a series of suits against seven additional companies in June of last year. The patent-in-suit originated with Rockwell International Corporation, which assigned the patent to its semiconductor division Conexant Systems in December 1998. In October 2010, Conexant Systems assigned the patent to AIM IP. RPX reviewed the ‘853 patent in the open market (AIM 1-Acq) in January of 2011. 2/4, Central District of California, 8:13cv00183; 8:13cv00184; 8:13cv00185; 8:13cv00186; 8:13cv00187; 8:13cv00188; 8:13cv00189.
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