Selene Communication filed suit against LinkedIn accusing the online professional networking service of infringing a single patent (6,363,377)related to search queries in an information management system. Since March 2014, Selene, a subsidiary of Helios IP, has sued  asserted the patent in suits against nine defendants including Dell, EMC, Monster Worldwide, Open Text, Oracle, Reed Elsevier, Rackspace and Thomson Reuters. Selene acquired a total of three patents including two related to network security from SRI International last year. One of those, (7,143,444) has been asserted in a second campaign launched in February against networking and security companies including Dell, EMC, Extreme Networks, Fortinet, Intel, Trend Micro, and Verizon. 4/14, District of Delaware, 1:14cv00462