HOMCO
Filed: November 27, 1945
OIL WELL TOOLS AND PARTS THEREOF-NAMELY, CUTTERS AND CUTTING KNIVES, SUBS, BITS, SWAGES, SPEARS, OVERSHOTS, FISHING TOOLS…
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 71492266
HOMCO
Filed: November 26, 1957
OIL FIELD DRILLING SERVICES SUCH AS DIRECTIONAL DRILLING, WELL SURVEYING, FISHING TOOL SERVICES, AND ELECTRICAL WELL SERVICING…
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 72041387
WEATHERFORD
Filed: February 23, 1962
RENTAL, REPAIR, CONDITIONING, AND INSTALLATION OF OIL WELL EQUIPMENT; PIPE RECOVERY SERVICE RENDERED TO OIL WELL OPERATORS…
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 72138564
COROD
Filed: January 7, 1970
OILFIELD EQUIPMENT-NAMELY, SUCKER ROD STRINGS AND HARDWARE FOR USE WITH SUCH STRINGS
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 72347858
GEM-TRIM
Filed: February 24, 1975
CHOKES AND VALVES AND PARTS AND CONTROLS THEREFOR
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 73037980
KOBE
Filed: August 14, 1975
BALL VALVES, CHECK VALVES, GATE VALVES, FOUR-WAY SHOE TYPE VALVES, SHUTOFF VALVES, AND SOLUBLE PLUG INJECTOR VALVES
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 73060519
HOMCO
Filed: November 7, 1975
POWER OPERATED OIL WELL TOOLS AND PARTS THEREOF-NAMELY, CUTTERS AND CUTTING KNIVES, SUBS, BITS, SWAGES, SPEARS, OVERSHOTS…
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 73068300
JAM
Filed: March 18, 1977
OIL FIELD TUBULAR CONNECTION ANALYSIS SERVICES
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 73119869
EL
Filed: September 5, 1978
SUCKER RODS
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 73184701
EL
Filed: June 19, 1981
Sucker Rods
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 73315626
R-A-M
Filed: July 12, 1982
Well Tool for Use in an Oil Well Drilling-Namely, a Shock Absorber Placed in a Drill String to Control Vibrations
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 73373947
DAILEY
Filed: October 7, 1983
DOWNHOLE DRILLING TOOLS AND PARTS THEREFOR
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 73447145
W WEATHERFORD
Filed: April 27, 1984
PROVISION OF OILFIELD CASING SERVICE CREWS FOR MAKEUP AND BREAKING OF CASING AND TUBING STRINGS
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 73477653
W WEATHERFORD
Filed: April 27, 1984
CRANES AND PARTS THEREOF FOR OFFSHORE AND MARINE INDUSTRIES; [ MACHINES FOR CLEANING VARIOUS TYPES OF SURFACES USING WATER…
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 73477656
WELLCAT
Filed: May 7, 1990
drilling tool rental services
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 74056459
WELLCAT
Filed: May 7, 1990
drilling tool rental services
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 74056475
HOUSTON WELD
Filed: June 24, 1991
metal screens for oil and water wells
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 74179264
MICRO-PAK
Filed: June 24, 1991
metal screens for oil and gas wells
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 74179266
DURA-GRIP
Filed: June 24, 1991
metal screens for oil and gas wells
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 74179267
KLEPO
Filed: December 17, 1991
plastics in the form of sheets blocks and rods for use in manufacture; plastic end caps for protecting threads on the ends…
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 74231680
DIONIC
Filed: April 3, 1992
difunctional water-soluble polymers for use in shale stabilization in hydrocarbon recovery
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 74262239
HYPULSE JAR SLINGER
Filed: May 29, 1992
oil well tool for increasing the effectiveness of drilling and fishing jars by accumulating tensile energy and providing…
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 74280777
MAXIMIZER
Filed: September 23, 1993
pump jacks for removing oil and other materials from underground in the petroleum industry
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 74439112
MAXIMIZER II
Filed: September 23, 1993
pump jacks for removing oil and other materials from underground in the petroleum industry
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 74439401
WHITING
Filed: December 6, 1993
rental of oil field tools and equipment
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 74465225
WEATHERFORD
Filed: January 14, 1994
cranes and parts thereof for offshore and marine industries; oil well drilling equipment; namely, chain tongs, power tongs…
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 74479566
WHIPBACK
Filed: June 14, 1994
whipstocks for use in wellbores
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 74537327
OIL COUNTRY
Filed: February 24, 1995
oil well pipe handling cleaning equipment, namely tubing spiders, tubing tongs, sucker rod tongs, tubing elevators, sucker…
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 74640123
OIL COUNTRY
Filed: February 24, 1995
oil well pipe handling cleaning equipment, namely tubing spiders, tubing tongs, sucker rod tongs, tubing elevators, sucker…
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 74640124
CYGNET
Filed: June 22, 1995
personal computer software for local and wide area networks used to construct business applications for manufacturing, utilities…
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 74691930
ROTAFLEX
Filed: November 9, 1995
pumps for oil wells
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 75017518
RIV/SL
Filed: December 14, 1995
manually operated metal control valves for controlling downhole fluid flow between a tubing string and a well annulus
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 75032319
CENTRAPRO PLUS
Filed: December 18, 1995
engineering consultation services relating to downhole wellbore centralizer placement calculations in the construction of…
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 75033752
WIPERLOK
Filed: December 20, 1995
[ metal float shoes, metal float collars, metal plugs and metal wipers for use in the construction, maintenance and repair…
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 75037179
MAXPAK
Filed: May 29, 1996
downhole well screens used to complete oil and gas wells
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 75111364
VIRTUAL RISER
Filed: July 20, 1998
Offshore drilling machinery, namely, subsea rotating control head
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 75521385
DNT
Filed: October 2, 1998
MECHANICAL DIRECTIONAL DRILLING JAR
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 75563091
SPIRAGLIDER
Filed: January 8, 1999
Drilling machine for horizontal drilling and downhole excavation
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 75617321
RISERCAP
Filed: April 7, 1999
Rotatable seal for sealing between a drill pipe and an oil well casing
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 75676679
HIPPO
Filed: October 30, 1999
Machine tools for use in the cleaning of pipelines, pipes, and tubulars; pipeline pigs, stabilizers, turbines, internal…
Owned by: WEATHERFORD TECHNOLOGY HOLDINGS, LLC
Serial Number: 75689861
