Facebook: Yahoo! files a patent lawsuit

Yahoo! is suing Facebook for allegedly infringing on 10 patents covering technologies such as online advertising, privacy controls, and messaging. These patents cover tasks required to “build a successful website,” such as information customization and social networking, according to the complaint filed on Mar. 12 in federal court. Yahoo has been losing search and advertising market share to Facebook and Google. In February it said the social network must pay to license its technology as other Web companies have done. Facebook, which is preparing for its initial public offering, says it will defend itself against what it calls a “puzzling” suit.

To continue reading this article you must be a Bloomberg Professional Service Subscriber.