In the software security patent lawsuit, Intellectual Ventures alleges that the four defendants have infringed a patent for computer virus screening methods and systems, awarded in November 1999, as well as a patent for automated post office based rule analysis of e-mail messages and other data objects for controlled distribution in network environments, awarded in June 2000. The defendants have also infringed a patent for a distributed content identification system, issued in October 2002, and one for an e-mail virus protection system and method, awarded in March 2009, the company has alleged.

Intellectual Ventures alleges that Hynix and Elpida have infringed seven patents, and that the FPGA vendors infringed five patents.