Computer Software Protection (CSP) [NPE], a subsidiary of Acacia Research, filed five separate suits against Adobe, Autodesk, Mathworks, Nuance Communications, and Wolfram Research, alleging that the defendants’ software infringes a patent related to using registration keys to control the distribution of software under a license agreement.  These are the first patent infringement suits initiated by CSP.  According to the complaint, CSP is the exclusive licensee of the patent-in-suit, which originated with Starnet Communications.   RPX reviewed the patent as a litigation opportunity under “Starnet Communications” in December 2011.  4/10, District of Delaware, no judge yet assigned, 1:2012cv00451; 1:2012cv00452; 1:2012cv00453; 1:2012cv00454; 1:2012cv00455.