U.S. federal trademark · Serial No. 86875589
Non-metallic granular industrial minerals for use in well drilling and completion in the oil and gas industry; Surface treated non-metallic granular industrial minerals for use in well drilling and completion in the oil and gas industry; Surface treated industrial sands for use in the oil and gas industry; Surface treated proppants for use in oil well and gas well hydraulic fracturing operations; Surface treated proppants, namely, frac sand for use in oil well and gas well hydraulic fracturing operations
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