Speech Recognition Patent Invalidated on Multiple Grounds in CBM Review, PTAB Litigation Blog

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The Patent Trial and Appeal Board (“PTAB”) recently issued a Final Written Decision in favor of Comcast Cable Communications, LLC (“Comcast”) and against Promptu Systems Corporation (“Promptu”) in a covered business method (“CBM”) review of Promptu’s U.S. Patent No. RE44,326 E (“the RE ’326 patent”), finding multiple bases to invalidate claims related to using voice commands to order videos over a network. See Comcast Cable Communications, LLC v. Promptu Sys. Corp., Case No. CBM2018-00034 (Paper 31) (Oct. 7, 2019). The decision was handed down just months after the Board invalidated nearly all of the same claims for obviousness in a related inter partes review.

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