U.S. federal trademark · Serial No. 87872669 · Reg. No. 5767034
Drilling muds for use in oil well drilling; Chemical additives for oil well drilling fluids; Chemical additives for drilling muds; Chemicals used in oil drilling
Drilling of deep oil or gas wells; Drilling of deep oil or gas-wells; Drilling of deep oil wells; Oil and gas drilling
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.