Matthew Johnson, Yang Li Ph.D. The parties’ dispute began in 2018. On November 12, 2018, the Petitioner filed five petitions requesting inter partes review of claims 1–20 of U.S. Patent No. 9,621,956.
August 22, 2025 - Acting Director Coke Morgan Stewart of the U.S. Patent and Trademark Office recently issued a new policy memorandum that limits the types of prior art that may be used to challenge ...
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