U.S. federal trademark · Serial No. 77345519
Ceramic pellets, shots, or spheres for use in oil well and gas well hydraulic fracturing and as a gravel pack materials for sand control operation, strengthening agents for subterranean formations, subterranean formation filling materials, proppants, abrasive agents for subterranean formations, and fluid loss additives for subterranean formations
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.