WEATHERFORD

Classe 1

Pelletized chemicals for rehabilitation of encrusted wells; amphoteric foaming agents; friction reducing compounds for use downhole during oil well drilling operations; emulsion breakers for use in demulsifying and desalting characteristics for light to very heavy crudes; hydrogen sulfide and metal ion scavenging compositions, paraffin dispersants, microbiocide and desiccant tablets, heat exchange fluids, emulsion drilling fluids, topical defoamers, well drilling fluids, pipe cleaning fluids, acid cleaners, water soluble polymers, hollow alumina-silica microspheres, pourpoint depressants, hydrocarbon gels, iterated foam, and ferric alkyl aminecitrates all for use in oil and gas services; lubricants, solvents, emulsifiers, plugging agents, cationic surfactants, cement defoamers, corrosion, scale and crystallization inhibitors all for use in oil and gas services; chemicals to reduce the viscosity of drilling fluid additives; granular acid, liquid acid, clay dispersant, bioacid, biocaustic dispersant, nonionic dispersant, surfactant and chlorine enhancer for removal of scale and mineral deposits and accumulations and for dissolution and dispersion of polyphosphate and organic compound

Classe 7

Drilling tools for use in oil and gas industry, namely, power drill bits for oil well drilling, expandable bits for oil well drilling, casing shoes, torque reduction tools, reamer shoes, oil well drilling tools, cutting nozzles; releasable coupling devices, connectors for drill pipes, hydraulic cam motors, check valves, orienting device for drilling tools, hydraulic disconnect devices; drill string stabilizers and orienting tools, shock absorbers, separators, and gas filled accelerators used in conjunction with a jar to provide an impact force; machines for cleaning various types of surfaces using water pressure; oil well drilling equipment, namely, chain tongs, power operated drill pipe spinning wrenches; oilfield fluid end products, namely, chemical injection pumps and parts therefore, mud pump pistons and pump handling equipment having power generators for oilfield equipment; vertical pipe handling equipment having power-operated rot table gripping head and stabbing boards; oilfield cementation equipment, namely, centralizers for casing and tubing, cement baskets, scratchers, wellbore wipers, and stop collars; oilfield float equipment, namely, float shoes, float collars, guide shoes, insert flapper collars, latch down baffles and baffle collars, and stage cementing tools; oilfield cementing plugs; drill pipe and casing protectors; control line and sucker rod protectors; portable thread cleaners for cleaning threaded connections of oilfield tubulars, consisting of power drive assembly, brush housing and solvent tank therefore; oilfield production equipment, namely, wellhead and plant dehydrators, vertical oil treaters, production units comprised of separators and heaters, sand traps, free-water knockouts, and pigging systems comprised of pigging units and drilling valves; oil well completion equipment, namely, packers, flow control equipment, subsurface valves, and sliding sleeves; casing patches, casing liners, and well screens; expandable tubular products, namely, sand screens, casing patches, and expandable liners and liner hangers; casing liner hangers; top drive units; rotating control heads; blowout preventors; downhole motors and turbines for drilling; oil well fishing, cutting and rental equipment, namely, mills, whipstock and jars; fluid recovery system, namely downhole pumps with surface drive units, jet pumps, hydraulic pumps, and electric motors with pumps; cranes and parts thereof for offshore and marine industries; plastic drill pipe protectors; installation tools for drill pipe protectors, control line and sucker rod protectors, stabilizer sleeves, wipers for drill strings, kelly wipers, portable thread cleaners for cleaning threaded connections for cleaning threaded connections of oilfield tubulars, consisting of power drive assembly, brush housings and solvent tank therefor; tubular running tools, namely, single-joint compensators and auto-seal circulating heads; fishing tools, namely, hydraulic multi-string cutters, milling tools, section mills, packer milling and retriever assembly

Classe 9

Infrared water fraction and cut meters; leak and pipe testing equipment; fiber optic products for oil and gas exploration, drilling and production operations to include-- fiber optic cable, fiber optic connectors, feedback lasers, contact protectors, strain measurement fasteners, fiber Bragg gratings and filters; fiber optic systems consisting of probes and pressure gauges for calibration and fiber optic surveying; devices to measure optical wavelengths, fluids, flowrates, seismic signals and temperatures; fiber optic sensors; oilfield pressure testing apparatus for testing of tubulars, blowout preventors, wellheads, Christmas trees, manifolds, lubricators, and other pressure vessels; oilfield production equipment, namely, pressure vessels, well testing units, and metering separators; automatic well head pressure relief valves

Classe 35

[ Temporary employment services, namely, providing oilfield casing services crews for makeup and breaking of casing and tubing strings ]

Classe 37

Repair, conditioning, installation and operation of oil and gas well equipment for others; repair of high-pressure water discharge cleaning machines; make-up and pre-assembly of downhole completion assemblies; pipe recovery services rendered to oil and gas well operators; and machinery maintenance and repair and molding of parts for others; directional drilling services for others; under balanced drilling services for others; providing electric wire line and tubing conveyed perforating services for others; providing oil field bolt-tensioning services for bolted connections, namely, installing blowout prevent or stacks, wellheads, gathering systems, turbines, compressors, and heat exchangers; rental of oil and gas well equipment and downhole tools; rental of high-pressure water discharge cleaning machines; oilfield bolt-tensioning services for bolted connectors, namely, blowout prevent or stacks, wellheads, gathering systems, turbines, compressors and heat exchanges; Construction of wells, well sites, and production facilities in connection with the use of industrial screening and filters for industrial, refining, mineral processing, agricultural, architectural, municipal, environmental, oil and gas purposes

Classe 40

Construction of wellhead production equipment systems to the order and specifications of others; Construction of infrastructure apparatus for wells and well sites to the order and specification of others in connection with the use of industrial screening and filters for industrial, refining, mineral processing, agricultural, architectural, municipal, environmental, oil and gas purposes

Classe 42

Oilfield tubular pressure testing services; oilfield tubular connection analysis services; oilfield cementation engineering studies and services; and customer engineering for other oilfield and industrial equipment companies; engineering and design services for others in connection with use of industrial screening and filters for industrial, refining, mineral processing, agricultural, architectural, municipal, environmental, fluid and solid separation, and oil and gas purposes and surface water applications