Facebook Claims Ignorance Of Patent In 'Like' Button Suit

Law360, Washington (May 17, 2013, 4:06 PM EDT) -- Facebook Inc. urged a Virginia federal judge Friday to throw out a patent-holding company's suit alleging that its "Like" button and other sharing features infringe two social media patents, saying the company hasn't proven Facebook knew about the patent before it was hit with the suit.

Facebook maintains that without proven prior knowledge of the patent, Rembrandt Social Media LP's suit can't survive its motion to dismiss, as Rembrandt has no basis to show Facebook and co-defendant AddThis Inc. knowingly infringed the two patents-in-suit. Facebook's "Like"...
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