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Mealey's IP/Tech - Owner Defends Patented Pressure Actuated Sleeve In Brief Before Board

ALEXANDRIA, Va. - An oil and gas company in a Dec. 17 response tells the Patent Trial and Appeal Board that it should confirm as patentable nine claims of a patented pressure actuated sleeve used in the hydraulic fracturing industry (Weatherford International LLC v. Baker Hughes Oilfield Operations LLC, No. IPR2019-00768, PTAB).
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