Description: Class 6: Pipeline pipes, joints, connectors, wye's, insulating joints and flanges made of metal; [ mooring system tendons, joints, connectors, anchors and flanges made of metal; ] drilling and production riser pipes, joints, connectors and flanges made of metal; skirt pile grippers made of metal; metal pile salvage flotation plugs [ ; rope sockets and mandrels made of metal; metal tubes; metal tubing mandrels; metal clamps ]
Class 7: Oil and gas production and completion machines and parts of machines, namely, pumps, [ packers, ] flow control equipment, valves and actuators; oil and gas pipeline equipment and hardware, namely, power operated repair clamps, connectors, hot taps, plugs, [ safety joints, ] [ pig launchers, ] swivels; power operated lifting and handling tools; vertical pipe, piling and conductor lifting and handling tools; oil and gas well cementation machines; machine couplings; clutches and brakes for use in oil and gas exploration and production machines
Class 9: Oilfield pressure testing apparatus for testing of tubulars, blowout preventors, wellheads, christmas trees, manifolds, lubricators, and other pressure vessels; oilfield production equipment, namely, automated pressure vessels, well-testing units [, and metering separators; automatic wellhead pressure relief valves ]
Class 17: [ Extruded polyvinylchloride mats for use in oil and gas exploration and production; ] elastomeric platform fendering systems, consisting of bumpers and shock cells; [ inflatable pipe plugs made primarily of rubber; ] mounts and couplings for shock, vibration and noise attenuation made primarily of rubber; [ pipeline pigs; ] molded rubber products used in oil and gas well servicing, namely, wire cups, swab cups [ and pigs; bridge bearing pads made primarily of rubber ]
Class 37: Construction, repair, installation, leveling [, pile swagging and grouting ] for others
Class 42: Rental of oil and gas well equipment and downhole tools; design of oil and gas well equipment for others; mold design services; elastomer fabrication development; oilfield bolt-tensioning services for bolted connections; oilfield tubular connection analysis services; oilfield cementation engineering studies and services; custom design and engineering for other oilfield and industrial equipment companies; testing, operating and decommissioning of oil and gas well structures and equipment for others
