IP Venture [NPE] filed suit against IBM, alleging that IBM’s Websphere Commerce system infringes a patent related to server load balancing.  IP Venture has filed five prior suits since August 2003 against defendants including AT&T, Fujitsu, Lenovo, Panasonic, Sony, Sprint Nextel, and Verizon Wireless.  The patent-in-suit originated with Webvan Group and was assigned to Kaiser Foundation Hospitals before being assigned to IpVenture in May 2009.  1/18, Southern District of New York, 7:2012cv00418.