HUGHES TOOL COMPANY

269A

HELICOPTERS;269 A;

AQUAFOAM

OIL AND GAS WELL STIMULATION SERVICES;

BLUE DIAMOND

TONG DIES FOR USE IN OIL WELL EQUIPMENT;

BOT

The letters in the mark are BOT.;Tools for Drilling, Completion, and Workover of Oil and Gas Wells-Namely, Packers, Polished Bore Receptacles, Bridge Plugs, Tubing Hanger/Anchors, Tubing Anchor Catchers, Liners, Liner Hangers, Liner Packers, Setting Tools, and Liner Tie Backs;

BOT

The letters in the mark are BOT.;Tools for Drilling, Completion, and Workover of Oil and Gas Wells-Namely, Packers, Polished Bore Receptacles, Bridge Plugs, Tubing Hanger/Anchors, Tubing Anchor Catchers, Liners, Liner Hangers, Liner Packers, Setting Tools, and Liner Tie Backs;

BOT BROWN OIL TOOLS INC. HOUSTON TEXAS

The letters in the center of the mark are BOT.;Tools for Drilling, Completion, and Workover of Oil and Gas Wells-Namely, Packers, Polished Bore Receptacles, Bridge Plugs, Tubing Hanger/Anchors, Tubing Anchor Catchers, Liners, Liner Hangers, Liner Packers, Setting Tools, and Liner Tie Backs;No claim is made to the exclusive right to use the words Oil, Tools, Inc., Houston, Texas, apart from the mark as shown.;

BROWN

Well Completion and Workover Services;

CASING PLUS

Tubular Metal Tool Joints, i.e., Threaded Tubular Connectors for Well Drilling Pipe;No claim is made to the exclusive right to use Casing, apart from the mark as shown.;

CENTRIGARD

ELECTRICAL CONTROL APPARATUS-NAMELY, CONTROLLERS FOR ELECTRIC MOTORS;CENTRIGUARD;

CENTRILIFT HUGHES

Electrical Submersible Well Pumps and Parts Thereof;

DOODLEBUGGER

All-Purpose, Blade-Type Earth Boring Bits for Shot Hole, Exploration, Slim Hole, Blast Hole and Water Well Drilling;

ECONOLIFT

PROGRESSING CAVITY OIL WELL PUMP SYSTEM AND COMPONENTS COMPRISING A STATOR, A ROTOR, A DRIVE HEAD AND A MOTOR;

ELECTRO FORM

ELECTRIC POWER TRANSFORMERS;ELECTRIC FORM;ELECTRO;

HT

AIRCRAFT, PARTICULARLY ROTARY WING AIRCRAFT;

HT

COMPANY MAGAZINE AND TECHNICAL INFORMATION BROCHURES;

HT HUGHES

CAPS;

HUGHE SET

ROCK BITS;

HUGHES

EARTH DRILLING MACHINES, SHOCK ABSORBERS FOR EARTH DRILLING OPERATIONS, ROTARY PERCUSSION EARTH DRILLING BITS, CRANE ATTACHMENTS FOR EARTH DRILLING EQUIPMENT;

HUGHES

Well Drilling Services Including Welding Tool Joints to Drill Pipe;

HUGHES 269A

HELICOPTERS;269 A;

HUGHES 300

HELICOPTERS;

HUGHES ARC

HARDFACING ON TOOL JOINTS;

MCMURRY HUGHES

Gas Lift Valves and Components Therefor Used for Petroleum Recovery from Underground Sources;

PROTECTO MAGIC

MIXTURE OF POWDERED ASPHALT AND POWDERED INERT FILLER WHICH MAY BE USED AS AN ADDITIVE FOR WATER BASE DRILLING FLUIDS OR WATER TO FORM AN OIL EMULSION DRILLING FLUID;

RINGLOK

Earth Boring Drill Bits Used in the Oil, Gas and Mineral Industries for Drilling;

ROTA-BLAST

Earth Boring Drills;

SAF-T-SPIN

DRILL PIPE SPINNERS;SAFETY SPIN;

SMOOTHDRILL

SHOCK ABSORBING COUPLINGS FOR DRILL PIPE;

SMOOTHDRILL II

SHOCK ABSORBING COUPLINGS FOR ROOF DRILL STEEL;2;

SOFT-DRIL

SHOCK ABSORBING APPARATUS USED IN THE DRILL STRING OF EARTH BORING MACHINES;

SOFT-SHOC

Shock Absorbers Used in the Drill String of Rotary Well Drilling Equipment;SOFT-SHOCK;

SPINTORC

MACHINES COMBINING DRILL PIPE SPINNERS AND TORQUE WRENCHES;

SUPER SCOOP

EARTH BORING BITS;

SUPERWEIGHT

Drill Pipe for Drilling Wells;

TRANSTOP

Electrical Transient Suppressors Particularly for Protecting Electrical Submersible Oil Well Pumps from Electrical Transients;

XTRA HOLE

EXTRA HOLE;TOOL JOINTS EMPLOYED IN COUPLING TOGETHER SECTIONS OF DRILL STEM IN WELL DRILLING;

XTRAWEIGHT

Drill Pipe for Drilling Wells;EXTRAWEIGHT;