U.S. federal trademark · Serial No. 77774846 · Reg. No. 3749279
Oil and gas drilling apparatus, namely, drill collars, integral blade stabilizers, stabilizer mandrels, measurements-while-drilling housings, logging-while-drilling housings, non-magnetic drill collars, integral blade non-magnetic stabilizers, non-magnetic flex collars, and parts and fittings for all the aforesaid goods
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.