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Estoppel Estopped for Remanded Claims, PTAB Litigation Blog
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In General Access Sols., Ltd. v. Sprint Spectrum, et al., No. 2:20-cv-00007-RWS, ECF No. 128 (E.D. Tex. Dec. 1, 2020), the Eastern District of Texas denied a motion to strike invalidity defenses as barred by IPR estoppel for patent claims whose validity was initially upheld at the PTAB, but vacated and remanded on appeal.