On January 3, 2011, Walker Digital, an IP focused company well known for cases against Microsoft and Facebook, filed a patent infringement lawsuit against Zynga, Activision and the latter’s subsidiary Blizzard Entertainment. The asserted patent, U.S 6,425,828 (hereafter ‘828), claims a method for conducting a networked electronic tournament for a plurality of players and storing player information for use in subsequent sessions. Zynga (FarmVille), Activision (Call of Duty and Guitar Hero) and Blizzard (World of Warcraft) are giants in the online gaming industry.
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