Proxyconn filed suit against Acer, Dell, HP and Microsoft, alleging that the defendants’ computer systems that employ Windows servers infringe a patent related to improving network speeds by remote differential compression.  The patent-in-suit was issued to inventor, Leonid Goldstein, prior to being assigned to Proxyconn in 2001.  11/3, Central District of California, 8:2011cv01681; 8:2011cv01682; 8:2011cv01683; 8:2011cv01684.