Advanced Display Technologies [NPE] filed suit against Dell, Futurewei, HTC, Lenovo, Motorola, Philips, Sanyo, Sony, and Sony Ericsson Mobile Communications over two patents related to display screens for smartphones, tablets, computer monitors, and flatscreen TVs.  The plaintiff filed one prior suit over the same patents in January 2011 against Apple, ASUS, AU Optronics, Haier, RIM, Sharp, ViewSonic, and Vizio.  The two patents were sold by Honeywell following a marketing process that included RPX in 2009.  The assignment of the patents was recorded in January. RPX has received indications that the patents may have been acquired by an entity controlled by Tom Coverstone, attorney and principal of Guardian Media. 8/1, Eastern District of Texas, 6:2011cv00391.