AT&T Fails To Sway PTAB To Eye Intellectual Ventures Patent

By Kelly Knaub (May 5, 2016, 7:46 PM EDT) -- The Patent Trial and Appeal Board on Tuesday refused to review an Intellectual Ventures LLC patent on providing directory assistance and call completion services for cellphone users under the America Invents Act business method patent review program, saying AT&T failed to show that the patent qualifies for such review....

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