YAHOO Sues Facebook For Infringing 10 patents

Reuters reports Yahoo has sued Facebook for infringing 10 patents.

Article at:
    http://www.reuters.com/article/2012/03/12/us-yahoo-facebook-lawsuit-idUSBRE82B18M20120312

A copy of the lawsuit, with a list of the ten patents, is available at:
    http://www.scribd.com/doc/85094882/Yahoo-s-Patent-Lawsuit-Against-Facebook

Yahoo Facebook Patent War

 Yahoo has demanded licensing fees from Facebook for use of its technology, the companies said on Monday, potentially engulfing social media in the patent battles and lawsuits raging across much of the tech sector.

Yahoo has asserted claims on patents that include the technical mechanisms in the Facebook's ads, privacy controls, news feed and messaging service, according to a source briefed on the matter.

Representatives from the two companies met on Monday and the talks involved 10 to 20 of Yahoo's patents, said the source, who was not aware of what specific dollar demands Yahoo may have made for licenses.

See Yahoo and Managing IP