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Drag reduction of asphaltenic crude oils
- April 13, 2023 Fed. Circ. Affirms PTAB Invalidation Of Oil Transport Patents
- August 19, 2021 Fed. Circ. Allows Arthrex Remand On 2nd Oil Patent Appeal
- October 18, 2018 Fed. Circ. Tells PTAB To Consider Success Of Oil Invention
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