Yahoo stokes patent war with Facebook

Yahoo stokes patent war with Facebook

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 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, sources said.

The two companies met and talks involved 10 to 20 of Yahoo's patents, sources said. Yahoo said other companies have already licensed some of the technologies at issue, and that it would act unilaterally if Facebook refused to pay for a patent license.

“Yahoo has a responsibility to its shareholders, employees and other stakeholders to protect its intellectual property,” the company said.