U.S. federal trademark · Serial No. 98023235 · Reg. No. 7460576
Bentonite; Silicates; Barytes (barite, heavy spar); Calcium chloride; Chemical additives for oil well drilling fluids; Chemical fracturing fluids for use in the oil and gas industry; Drilling muds; Oil-separating chemicals; Proppant for use in oil well and gas well hydraulic fracturing operations; Salts for industrial purposes
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.