$BB Bloomberg) -- Appeals court, without issuing formal opinion, affirms U.S. Patent Trial and Appeal Board decision that BlackBerry patent 8,402,384 is invalid. * PTAB had agreed with petitioner Google that the patent was an obvious variation of old ideas * Patent covers graphical user interface including a dynamic bar for displaying preview information * Patent was part of patent-infringement suit BlackBerry filed in 2016 against BLU Products; that case was dismissed in April 2017 * CASE: Blackberry Ltd. v. Google LLC, 19-1145, U.S. Court of Appeals for the Federal Circuit
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