U.S. federal trademark · Serial No. 73516603 · Reg. No. 1386569
DRILLING EQUIPMENT AND MATERIAL, NAMELY, DRILL COLLARS, HEAVY DRILL PIPES, DRILL PIPES, STABILIZERS, REAMERS, HOLE OPENERS, KELLY COCKS, HYDRAULIC CATHEADS, SAFETY SUBS, ROTARY TAPER TAPS AND DIE COLLARS, LIFTING SUBS, NON-MAGNETIC DRILL COLLARS, NON-MAGNETIC STABILIZERS, CLAMP-ON STABILIZERS, BASKET SUBS, PUMP JOINTS, FLUID END PUMP PARTS, CHECK VALVES, DROP-IN CHECK VALVES, MUD KELLY VALVES, FLOAT VALVES, INSIDE BOP VALVES
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.