Also, the inventor listed on the patents, Dr. Robert Short, who previously worked at SAIC, is CTO at VirnetX: http://virnetx.com/company/executive-management ("Dr. Short has been the Chief Scientist for VirnetX since May 2007 . . . . From February 2000 to April 2007, Dr. Short was Assistant Vice President and Division Manager at Science Applications International Corporation, or SAIC. . . . Dr. Short is named as a co-inventor on substantially all of the patents in the VirnetX patent portfolio.")
I haven't studied the patents in question and am not commenting on whether they're any good or not. But considering how much of the core internet technologies were developed by private defense contractors working for the government, it's not far-fetched that some of them would hold key patents.