Class 003
Cosmetics and Cleaning Products
Ceramic materials for use in the oil 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 materials for sand control operation, and for use as strengthening agents for subterranean formations; subterranean formation filling materials used in the oil and gas industry, namely, ceramic pellets, shots and spheres; proppants; abrasive agents for subterranean formations; fluid loss additives for subterranean formations; materials for measuring subterranean formations used in the oil and gas industry, namely, ceramic pellets, shots and spheres; materials for sensing geometries of propped fractures in subterranean formations used in the oil and gas industry, namely, ceramic pellets, shots and spheres; materials for identifying locations of proppants in subterranean formations used in the oil and gas industry, namely, ceramic pellets, shots and spheres; tracers, namely, ceramic pellets, shots and spheres in combination with conventional proppants which form a detectable marker used in the oil and gas industry; materials for sensing flow back of proppants in a subterranean formations used in the oil and gas industry, namely, ceramic pellets, shots and spheres; and materials capable of indicating changes of proppant placements dynamically over time used in the oil and gas industry, namely, ceramic pellets, shots and spheres.
