Cheetah Omni LLC v. AT&T Services, Inc., No. 19-1264 (Fed. Cir. Feb. 6, 2020)

From the Opinion

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Cheetah Omni LLC (“Cheetah”) appeals from the judg- ment of the U.S. District Court for the Northern District of Texas dismissing its infringement claims against appellees AT&T Services, Inc. (“AT&T”) and Ciena Communications, Inc. and Ciena Corporation (collectively, “Ciena”) with prej- udice. Judgment, Cheetah Omni LLC v. AT&T Servs., Inc., No. 3:17 -cv-01993-K (N.D. Tex. Oct. 23, 2018), ECF No. 130. For the reasons detailed below, we affirm. B ACKGROUND Cheetah owns U.S. Patent 7,522,836 (“the ’836 patent”) directed to optical communication networks.