13/03/2012 17:56
Yahoo Inc sues Facebook Inc
Facebook Inc is accused of using 10 patents illegally that include methods and systems for advertising on the Web, Reuters news agency reported.
The lawsuit, filed by Yahoo Inc in a San Jose, California federal court on Monday, marks a major escalation of patent litigation that has already swept up the smartphone and tablet sectors and high-tech stalwarts such as Apple Inc, Microsoft Corp and Motorola Mobility Holdings Inc.
Yahoo's patent lawsuit follows Facebook's announcement of plans for an initial public offering that could value the company at about $100 billion.
Facebook spokesman Jonathan Thaw said Facebook learned of the lawsuit through the media.