U.S. federal trademark · Serial No. 87144566 · Reg. No. 5180453
Custom manufacture of drill bits and drilling equipment in the field of oil well drilling technology
Oil field well drilling machines and parts therefor, namely, drill bits
Design, development and engineering of drill bits and drilling equipment in the field of oil well drilling technology
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.