U.S. federal trademark · Serial No. 88604028 · Reg. No. 6687345
Drilling assembly, namely, a metal drill collar designed to improve drilling performance and wellbore verticality; drilling assembly, namely, a uniquely designed precision metal drill collar with special weighting elements which mitigates vibration, improves drilling performance, and wellbore quality; drilling assembly, namely, a metal drill collar utilizing pressure wave absorption reaction mass technology
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.