U.S. federal trademark · Serial No. 85531695
PDC drilling bits for power drills, PDC hole opener power tools, and parts for power drills, namely, PDC drill bit extensions, all for use in oil gas well drilling, water well drilling, geothermal well drilling, construction drilling, and industrial drilling
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.