U.S. federal trademark · Serial No. 86312119
Industrial minerals for use in well drilling and completion; minerals used for the extraction of hydrocarbon from the earth; mineral additives and agents used for fluid-loss control, viscosity additives, rheology stabilizers, bridging agents, density modifiers, circulation control, cuttings removal, all used for the extraction of hydrocarbon from the earth; industrial clays and industrial minerals used for the extraction of hydrocarbon from the earth
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