U.S. federal trademark · Serial No. 90319094 · Reg. No. 6673636
Oil field well drilling machines and parts therefor, namely, drill bits; Down hole power drilling tools, namely, power drill string tools used to reduce friction between the drill string and the wellbore; Down hole drilling tools, namely, drilling tools being well drilling machines used to address vibration between the drill bit and drilling rig
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.