NATIONAL-OILWELL, L.P.

Description: Derrick structure used to support drill pipes and drilling equipment above ground

Description: SCR systems, namely, silicone control rectifier electrical units for converting AC to DC for drilling rigs; Machines for use in the production of oil and gas from wells and for the drilling of oil and gas wells, namely, derricks, drilling masts, off shore and on shore drilling rigs and work over rigs, machines that pump the oil and gas from the ground, and replacement parts therefor; machine tools, namely, blow out preventer handling systems comprised of lifting hoists and trolleys for operation on trolley beams; blow out preventer cranes; breakout machines; bumper subs; centrifugal pumps; coiled tubing equipment comprised of tubing hangers, tubing heads, work reels, hose reels, tubing reels, injector heads, injector head trolleys, control cabin and hydraulic power packs, carriers, trailers, masts, tubing grippers, lift chains, gripper blocks, block carriers, and pumps; machine parts, namely, chain links, cam rollers, level winds; cranes; crown blocks; deadline/wireline anchors; derricks; de-sanders; de-silters; dies and inserts; disc brakes for draw-works; down-hole motors; draw-works, namely, hoists; drilling jars; mud hoppers; mud guns; nitrogen pumping equipment comprised of pumps, carriers, and cryogenic pumps; pistons for slush pumps and well services pumps; platform rigs; plunger pumps; power swivels; reamers; rotary tables; safety valves; self propelled rigs; shakers; sheaves; shock tools used to isolate the oilfield drill string, namely, barrels, mandrels, spline drives, pistons, springs, and seals; skidding systems comprised of lift and roll components used to lift and roll the machines used to produce oil and gas from wells, rig jacks, claw and grippers; slips for drill pipes; drill collars, casing, and tubing; slurry pumps; slush pumps and mud pumps; solids controls equipment comprised of shale shakers, mud cleaners, de-grassers, de-silters, cones, mud agitators, mud hoppers, mud guns, mud mixers, shear relief valves, reset relief valves, float valves, and gate valves; spiders; stabilizers; substructures; swivels; machine parts, namely, rotary tongs; torque converters for machines; trailerized rigs; traveling blocks; slush pump valve seats; slush pumps; plunger pumps; well service pumps; machine parts, namely, wash pipes; well services pumps; winches; windlass, all being machines and machine tools for use in the production of oil and gas from wells and for the drilling of oil and gas wells

Description: Services of brokerage in the field of industrial equipment

Description: Brokerage in the field of industrial equipment

Description: Systems, namely, air-cooled solid state electro-electronic devices for the conversion of constant 3 phase AC power in controlled variable voltage DC power including main circuit brakes, line inductors, air-cooled bridge, thyristor module with fused protector, blown fuse indicator panel, firing circuit module, rate limit module, current limiting module, logic circuitry, air distributor, associated switchgear and disconnect terminal strips for use as alternative and direct current electrical drivers used with oil and gas drilling equipment

Description: Electrical power supply control systems, comprising silicon controlled rectifier drives, motor controllers, generator controllers, and related switches; "CONTROLS"

Description: Oil well pumps and replacement parts for oil well pumps

Description: Machines for the production and drilling of oil

Description: Machines for the production and drilling of oil

Description: Oil and gas processing equipment; namely, positive displacement pumps; [oil and gas processing equipment; namely, lease automated custody transfer (LACT) units for the metering and monitoring of the transfer of oil or gas from producer to customer; vapor recovery units for collection of vapor from heat-processed materials]

Description: Well drilling and production machinery, namely, derricks, masts, pipe erectors, pipe handlers, pipe loaders, drawworks, top drives, pipe elevators, power slips, iron roughnecks, stabbing guides, blowout preventers, blowout preventer handler, mud pumps, shale shakers, degassers, desanders, and operator cabins

Description: "LINER"

Description: Hydraulic jack for expanding tension components

Description: Parts and accessories for oil field pumps and pump components, namely, fluid end assemblies, rod end assemblies, and valve assemblies; retention systems for oil field pump components, namely, liner retention units, rod retention units, and valve retention units; oil field hydraulic pre-loading units; oil field hydraulic pistons and hydraulic load cells

Description: "COMPANY"

Description: OILFIELD MACHINES AND MACHINE TOOLS-NAMELY, HOISTS; [ PUMPS AND PUMP DRIVES; ] MASTS; DERRICKS; RIGS; [ ROTARY TABLE DRIVE ASSEMBLIES; SPUDDING ASSEMBLIES; ] CLUTCHES; [ CATHEADS; TRACTOR-MOUNTED BOOMS AND CRANES; SINGLE AND MULTIPLE ENGINE DRAW WORKS; ] WINCHES; [ VARIABLE SPEED DRIVES; CORE-DRILL SLUSHPUMP MOUNTINGS; BACK FILLERS; PIPE BENDERS; TRACTOR-TYPE GENERAL WELL SERVICING UNITS WITH VARIOUS ASSEMBLIES FOR CLEANOUT, DEEPENING, OR DRILLING IN WITH CABLE TOOLS, AND FOR ROTARY AND CORE DRILLING OPERATIONS ]

Description: Machines for use in the production of oil and gas from wells and for the drilling of oil and gas wells, namely, [ slurry pumps, slush pumps, and ] mud pumps and replacement parts therefore

Description: Dies and inserts for handling machine tools in the oil and gas industry

Description: Pumps for the petroleum, petrochemical, and chemical industries, namely, plunger pumps and piston pumps

Description: Pump parts, namely, non-metal piston seals, urethane valve inserts, non-metal valve cover gaskets, and non-metal O-ring seals

Description: Machines for use in the production of oil and gas from wells and for the drilling of oil and gas wells, namely derricks, drilling masts, off shore and on shore drilling rigs and work over rigs, machines that pump the oil and gas from the ground, and replacement parts therefore; Machine tools, namely, blow out preventer handling systems comprised of lifting hoists and trolleys for operation on trolley beams; blow out preventer cranes; breakout machines; bumper subs; centrifugal pumps; coiled tubing equipment comprised of tubing hangers, tubing heads, work reels, hose reels, tubing reels, injector heads, injector head trolleys, control cabin and hydraulic power packs, carriers, trailers, masts, tubing grippers, lift chains, gripper blocks, block carriers, pumps, machine parts, namely chain links, cam rollers, level winds; cranes; crown blocks; machine tools, namely deadline/wireline anchors; derricks; de-sanders; de-silters; drilling masts; offshore and onshore drilling rigs; dies and inserts; disc brakes for draw-works; down-hole motors; draw-works, namely, hoists; drilling jars; mud hoppers; mud guns; nitrogen pumping equipment comprised of pumps, carriers, and cryogenic pumps; pistons for slush pumps and well service pumps; platform rigs; plunger pumps; power swivels; reamers; rotary tables; safety clamps and safety valves; self-propelled rigs; shakers; sheaves; shock tools used to isolate the oilfield drill string, namely barrels, mandrels, spline drives, pistons, springs, and seals; skidding systems comprised of lift and roll components used to lift and roll the machines used to produce oil and gas from wells, rig jacks, claw and grippers; slips for drill pipes; drill collars, casing, and tubing; slurry pumps; slush pumps and mud pumps; solids controls equipment comprised of shale shakers, mud cleaners, de-grassers, de-silters, cones, mud agitators, mud hoppers, mud guns, mud mixers, shear relief valves, reset relief valves, float valves, and gate valves; spiders; stabilizers; swivels; machine parts, namely rotary tongs; torque converters for machines; trailerized rigs; traveling blocks; slush pump valve seats; plunger pumps; well service pumps; machine parts, namely, wash pipes; well service pumps; winches; windlass, all being machines and machine tools for use in the production of oil and gas from wells and for the drilling of oil and gas wells

Description: REPLACEMENT PARTS FOR PLUNGER PUMPS USED IN THE CONSTRUCTION, MINING, AND OILWELL INDUSTRY

Description: REPLACEMENT PARTS FOR PLUNGER PUMPS USED IN THE CONSTRUCTION, MINING, AND OILWELL INDUSTRY

Description: SCR systems, namely, silicone control rectifier electrical units for converting AC to DC for drilling rigs; Machines for use in the production of oil and gas from wells and for the drilling of oil and gas wells, namely, derricks, drilling masts, off shore and on shore drilling rigs and work over rigs, machines that pump the oil and gas from the ground, and replacement parts therefor; machine tools, namely, blow out preventer handling systems comprised of lifting hoists and trolleys for operation on trolley beams; blow out preventer cranes; breakout machines; bumper subs; centrifugal pumps; coiled tubing equipment comprised of tubing hangers, tubing heads, work reels, hose reels, tubing reels, injector heads, injector head trolleys, control cabin and hydraulic power packs, carriers, trailers, masts, tubing grippers, lift chains, gripper blocks, block carriers, and pumps; machine parts, namely, chain links, cam rollers, level winds; cranes; crown blocks; deadline/wireline anchors; derricks; de-sanders; de-silters; dies and inserts; disc brakes for draw-works; down-hole motors; draw-works, namely, hoists; drilling jars; mud hoppers; mud guns; nitrogen pumping equipment comprised of pumps, carriers, and cryogenic pumps; pistons for slush pumps and well services pumps; platform rigs; plunger pumps; power swivels; reamers; rotary tables; safety valves; self propelled rigs; shakers; sheaves; shock tools used to isolate the oilfield drill string, namely, barrels, mandrels, spline drives, pistons, springs, and seals; skidding systems comprised of lift and roll components used to lift and roll the machines used to produce oil and gas from wells, rig jacks, claw and grippers; slips for drill pipes; drill collars, casing, and tubing; slurry pumps; slush pumps and mud pumps; solids controls equipment comprised of shale shakers, mud cleaners, de-grassers, de-silters, cones, mud agitators, mud hoppers, mud guns, mud mixers, shear relief valves, reset relief valves, float valves, and gate valves; spiders; stabilizers; substructures; swivels; machine parts, namely, rotary tongs; torque converters for machines; trailerized rigs; traveling blocks; slush pump valve seats; slush pumps; plunger pumps; well service pumps; machine parts, namely, wash pipes; well services pumps; winches; windlass, all being machines and machine tools for use in the production of oil and gas from wells and for the drilling of oil and gas wells

Description: Oil well pumps and replacement parts for oil well pumps; "FLUID" and "OILFIELD PRODUCTS"

Description: Replacement parts for oilwell pumps, namely, pistons, valves, and seats

Description: Electrical controllers; clutches, brakes and couplings for oil drilling machinery

Description: Class 4: Industrial pipe thread lubricants
Class 7: Gas and oil well drilling pumps and parts therefor; gas and oil well drilling machines and parts therefor, namely valves and valve seats, pipe-handling assemblies, brake assemblies [ and solids controllers ]
Class 17: [ Non-metal flexible hoses for use by the gas and oil well drilling industry ]

Description: Well-drilling, servicing, and production equipment and parts thereof, namely derrick rigs, crown, blocks, traveling and speed blocks, coring reels, draw works, [ kelly drives, power rigs, ] rotary tables, tool swivels, drilling machines; [ hoists; winches and pulleys, ] and parts thereof

Description: Well-drilling, servicing, and production equipment and parts thereof, namely, derrick rigs, crown, blocks, traveling and speed blocks, [ coring reels, ] draw works, kelly drives, power rigs, rotary tables, tool swivels, drilling machines; hoists; winches and pulleys, and parts thereof

Description: Maintenance and repair of oil well drilling rigs, workover rigs and associated machinery

Description: [ Power-operated pumps and pump equipment for use in oilfield equipment and service; namely, triplex mud pumps, duplex mud pumps, rod pumps, hydraulic reciprocating pumps, hydraulic jet pumps, sucker rods, well service pumps and plunger pumps; ] oilwell drilling machinery and parts therefor; namely, [ drawworks, torque converters, rotaries, ] swivels, traveling blocks, hook blocks, and crown blocks [ drill pipe, tubulars, pedestal cranes, jacking and drilling manifolds; power-operated oil wellhead and well completion equipment; namely, wellheads, slips, casing hangers, tubing hangers, completion risers, drilling risers, production trees, through-bore trees, production manifolds and injection manifolds; valves for use with oil field drilling and production machinery; namely, gate valves, block valves, safety valves, pneumatic actuated valves and hydraulic actuated valves, all made of steel and used in oil wellhead completion equipment; valves for use with oil field drilling and production machinery; namely, ball valves, check valves, throttle valves and diverter valves, all made of steel and used in oilwell fluid control production systems ]; "OILWELL"

Description: [ Power operated pumps and pump equipment for use in oilfield equipment and service; namely, triplex mud pumps, duplex mud pumps, rod pumps, hydraulic reciprocating pumps, hydraulic jet pumps, sucker rods, well service pumps and plunger pumps; ] oilwell drilling machinery and parts therefor; namely, [ drawworks, torque converters, rotaries, ] swivels, traveling blocks, hook blocks, crown blocks [, drill pipe, tubulars, pedestal cranes, jacking and drilling manifolds; power operated oil wellhead and well completion equipment; namely, wellheads, slips, casing hangers, tubing hangers, completion risers, drilling risers, production trees, through-bore trees, production manifolds and injection manifolds; valves; for use with oilfield drilling and production machinery; namely, gate valves, block valves, safety valves, pneumatic actuated valves and hydraulic actuated valves all made of steel and used in oil wellhead completion equipment; valves for use with oilfield drilling and production machinery; namely, ball valves, check valves, throttle valves and diverter valves all made of steel and used in oilwell fluid control production systems ]

Description: Power operated pumps and pump equipment for use in oilfield equipment and service; namely, triplex mud pumps, duplex mud pumps, rod pumps, hydraulic reciprocating pumps, hydraulic jet pumps, sucker rods, well service pumps and plunger pumps; oilwell drilling machinery and parts therefore; namely, drawworks, torque converters, rotaries, swivels, traveling blocks, hook blocks, crown blocks, drill pipe, tubulars, pedestal cranes, jacking and drilling manifolds; power operated oil wellhead and well completion equipment; namely, wellheads, slips, casing hangers, tubing hangers, completion risers, drilling risers, production trees, through-bore trees, production manifolds and injection manifolds; valves for use with oil field drilling and production machinery; namely, gate valves, block valves, safety valves, pneumatic actuated valves and hydraulic actuated valves all made of steel and used in oil wellhead completion equipment; valves for use with oil field drilling and production machinery; namely, ball valves, check valves, throttle valves and diverter valves all made of steel and used in oilwell fluid control production systems; "OILWELL"

Description: Well drilling machine parts; namely, fluid end parts; namely, pump liners, [ packing, pistons, piston rods, ] valves, valve seats, valve inserts, [ valve seat pullers, and gaskets; solids control equipment; namely, shale shakers, shaker screens and shaker mounts, desilters, desilter cones, desanders, mud buckets, mud cleaners, mud agitators, mud guns, mud hoppers and choke nipples; ] centrifugal pumps and parts thereof; [ air unions ]

Description: Oil well drilling and workover rigs, mechanical drawworks, mud pumps, hook blocks, rotary tables and swivels

Description: Oil and gas well drilling machine parts; namely, [ roller chains, liners, crosshead extension rods, hammer unions, pistons, ] piston rods [, liner packing, and pipe protectors ]

Description: PARTS FOR PUMPS, NAMELY, VALVES AND VALVE SEATS

Description: MOBILE WELL DRILLING AND SERVICING RIGS, DRAWWORKS, DERRICKS, MASTS, MAST POLES, CHAIN AND GEAR TRANSMISSIONS, FRICTION CLUTCHES, WINCHES, HOISTS, DRILLING AND CLEAN-OUT SPUDDERS, DRILLING RIGS, TRAVELING BLOCKS, CROWN BLOCKS, [ POWER SUBS, MUD PUMPS, ] AND PARTS THEREOF

Description: INDUSTRIAL RECIPROCATING PUMPS AND PARTS THEREFOR

Description: SLUSH PUMP LINERS, SLUSH PUMP VALVES, SLUSH PUMP RODS AND SLUSH PUMP VALVE SEATS

Description: OIL WELL DRILLING TOOLS-NAMELY, DRILL PIPE SLIPS, DRILL COLLAR SLIPS, ROTARY SLIP INSERTS, [ ROTARY TONGS, COMBINATION TONGS, ] TONG DIES, PUMP LINERS, AND MUD PUMP PISTONS

Description: [ PAINT AND PAINT THINNER ]; [ TOOL JOINT LUBRICANT ]; [ LEVEL CONTROL VALVES, SAFETY SHUTOFF VALVES, THREADED HIGH-PRESSURE PIPE FITTINGS, SWIVEL FITTINGS, SPINNING CHAIN, AND SWIVEL WASHPIPES ]; [ SLUSH PUMP DISCHARGE AND SUCTION HOSE, ROTARY HOSE, V-BELTS, PISTON ROD PACKING, AND WASHPIPE PACKING ]; [ LIQUID LOADING ARMS, GEAR AND CHAIN POWER TRANSMISSIONS, ROTARY TABLES, ] SLUSH PUMPS, PUMPS [, WELL PUMPING UNITS, ] [ SUBSURFACE PUMPS, POLISHED ROD STUFFING BOXES, SUCKER RODS, SUCKER ROD COUPLINGS, AIR CLUTCH DIAPHRAGMS, AND FRICTION PLATES ]; [ ELECTRIC MOTORS AND CONTROLS THEREFOR, AND ENGINE-GENERATOR SETS ]

Description: VALVE AND SEAT ASSEMBLY FOR PUMPS FOR DRILLING MUD SERVICE

Description: [ MOBILE TREE HARVESTING MACHINES; APPARATUS FOR SEPARATION TREATMENT OF OIL, GAS, AND WATER, AND PARTS AND EQUIPMENT THEREFOR; ] RECIPROCATING PLUNGER PUMPS; [SWIVEL PIPE FITTINGS; VALVE ACTUATORS AND CONTROLS;] AND DRAWWORKS

Description: OILFIELD AND INDUSTRIAL PUMPS OTHER THAN WELL PUMPING EQUIPMENT- NAMELY, PLUNGER PUMPS AND PISTON PUMPS

Description: WELL DRILLING EQUIPMENT

Description: FLUID DRIVE DEVICES-NAMELY, TORQUE, CONVERTERS

Description: WELL PUMPING EQUIPMENT-NAMELY, OIL WELL PUMPING EQUIPMENT, INCLUDING PUMPING UNITS, PUMPING JACKS AND DRIVES AND HEAVY DUTY WATER WELL PUMPING EQUIPMENT OF THE WALKING BEAM TYPE

Description: PACKING-NAMELY, PUMP PACKING, PUMP CYLINDER LINER PACKING, VALVE INSERT PACKING, PACKING ELEMENTS FOR PUMP PISTONS, PISTON ROD PACKING, AND GASKETS

Description: OIL FIELD TOOLS AND MACHINERY - NAMELY, [ HYDRAULIC CASING PULLING MACHINES, ] INTERNAL COMBUSTION POWER DRIVEN WINCHES AND HOISTS, FRICTION CLUTCHES, DERRICKS,[ GEAR TRANSMISSIONS, ] INTERNAL COMBUSTION ENGINE POWER DRIVEN DRILLING RIGS, [ AND UTILITY UNITS COMPRISING AIR COMPRESSORS AND ELECTRIC GENERATORS SOLD AS A UNIT, ] AND PARTS THEREOF

Description: [BULL PLUGS, SWAGED NIPPLES, FLOW T'S, CASING HEADS, [TUBING HEADS, AND COMBINATION CASING AND TUBING HEADS ], ALL BEING IN THE NATURE OF FITTINGS FOR PIPES, TUBES, AND CASING]; [ CABLE TOOL WELL DRILLING UNITS, ] CROWN AND TRAVELLING BLOCKS, DRAW WORKS OR HOISTS, DRIVES FOR DRAW WORKS AND PUMPS, [ DRILL COLLARS, DRILL OR GRIEF STEMS, FEED CONTROLS FOR WELL DRILLING, GAS BOOSTER UNITS, ] [INTERNAL COMBUSTION ENGINES,] [ POLISHED ROD JACKETS, PORTABLE DERRICKS, PORTABLE MASTS, (PULL RODS ] , [ PULL ROD CLAMPS) ] ,PUMPS AND PARTS THEREOF, [ (PUMPING JACKS),((PUMPING POWERS)), ] PUMPING UNITS, [ REDUCTION GEARS, ] ROTARY DRILLING UNITS, [ ((STEAM ENGINES)), STUFFING BOXES, ((SUBSTRUCTURES FOR DERRICKS AND DRIVES)), SUCKER RODS, SUCKER ROD COUPLINGS, ] SWIVELS, TRANSMISSIONS, WELL DRILLING ROTARIES [ AND ((WELL PACKERS)) ]