 In February 2007, Microsoft filed a lawsuit at the International Trade Commission claiming that Alcatel-Lucent infringed its patents.There is a second case in San Diego where Microsoft is asserting that Alcatel-Lucent infringes 10 of its patents, and yet another case in Texas where each alleges that the other is infringing its patents.In the first San Diego case, Alcatel-Lucent claims ownership of several patents relating to MP3 and MPEG encoding and compression technologies, as well as other technologies.