U.S. federal trademark · Serial No. 87777681
oilfield machines and machine parts, namely, positive displacement motor power sections for converting hydraulic flow power to mechanical rotary power for subterranean drilling; oilfield machines and machine parts, namely, rotors and stators for use in positive displacement motors, stators for use with downhole agitators, stators for use with measurement-while-drilling equipment
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.