Personalized Media Communications, LLC v. Apple Inc., No. 21-2275 (Fed. Cir. Jan. 20, 2023)

From the Opinion

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Personalized Media Communications, LLC appeals the final judgment of the District Court for the Eastern District of Texas that U.S. Patent No. 8,191,091 is unenforceable based on prosecution laches. The district court determined that Personalized Media Communications successfully em- ployed an inequitable scheme to extend its patent rights. Because the district court did not abuse its discretion in finding the patent unenforceable, we affirm. BACKGROUND In 2015, Personalized Media Communications (“PMC”) sued Apple in the U.S.