U.S. federal trademark · Serial No. 85606055 · Reg. No. 4485768
Ceramic materials for use in the oil well and gas well industry, namely, ceramic pellets, shots, and spheres for use in oil well and gas well hydraulic fracturing and as a gravel pack material for sand control operation, and for use as strengthening agents for subterranean formations
Tracers for tracing subterranean formations; and materials capable of indicating changes of proppant placements dynamically over time
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