BAKER HUGHES INCORPORATED Trademarks
HT

HT

Filed: November 27, 1918
ROTARY EARTH-BORING DRILLS, DRILL-COLLARS, MILLING-TOOLS [, AND TAPS ]
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 71114397

TOLHURST

TOLHURST

Filed: October 18, 1921
Centrifugal Drying Machines, Also Known as Hydro-Extractors
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 71154289

TRI-CONE

TRI-CONE

Filed: December 19, 1947
WELL DRILLS
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 71544867

PETRONAUBA

PETRONAUBA

Filed: November 29, 1950
MICROCRYSTALLINE WAX
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 71607068

CENTER-SLUNG

CENTER-SLUNG

Filed: November 28, 1951
CENTRIFUGAL EXTRACTORS
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 71621745

BE SQUARE

BE SQUARE

Filed: February 11, 1952
MICROCRYSTALLINE WAX
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 71624772

DEMULSO

DEMULSO

Filed: December 20, 1952
DEMULSIFIER
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 71639829

BAKER

BAKER

Filed: March 16, 1953
OIL, GAS, WATER, AND SULPUR WELL TOOLS AND EQUIPMENT-NAMELY, CASING COLLARS, CASING SHOES, [ TUBING COLLARS, ] TUBING SHOES…
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 71643630

MAGNA-D-WAX

MAGNA-D-WAX

Filed: June 22, 1953
LIQUID SOLVENT FOR CLEANSING AND REMOVING WAXES DEPOSITED IN OIL WELLS AND PRODUCTION FLOW LINES THEREOF
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 71649167

PETRECO

PETRECO

Filed: November 7, 1957
CATALYTIC MATERIAL FOR HYDROCARBON SWEETENING PROCESS
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72040257

PETRECO

PETRECO

Filed: January 13, 1958
DEMULSIFYING, DEHYDRATING, DESALTING, AND PURIFICATION OF HYDROCARBONS
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72043868

TOLAD

TOLAD

Filed: June 4, 1958
ADDITIVES FOR PETROLEUM FUEL PRODUCTS
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72052901

NIAGARA

NIAGARA

Filed: January 23, 1959
INDUSTRIAL FILTER UNITS, ACCESSORIES AND PARTS THEREFOR
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72066315

CALTROL

CALTROL

Filed: May 25, 1959
Inhibited Drill Mud Compound, an Additive for Use in Conversion to an Inhibited Mud System
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72074441

MILSTARCH

MILSTARCH

Filed: May 25, 1959
Pre-Gelatinized Corn Starch for Use in Oil Drilling Muds as a General Purpose Fluid Loss Reduction Agent
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72074444

MILFLAKE

MILFLAKE

Filed: May 29, 1959
SHREDDED CELLOPHANE FLAKE, USED AS A FLAKE-TYPE LOSS CIRCULATION ADDITIVE FOR DRILLING MUDS
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72074774

CENTRILIFT

CENTRILIFT

Filed: January 11, 1960
Well Pumps and Parts Thereof
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72088727

THERMOSEAL

THERMOSEAL

Filed: February 10, 1964
OIL, GAS, WATER, AND SULPHUR WELL TOOLS AND EQUIPMENT-NAMELY, SUBSURFACE WELL PACKER APPARATUS AND ACCESSORIES THEREFOR
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72186318

PHD

PHD

Filed: March 31, 1965
MONITORING AND CONTROL APPARATUS FOR PUMPS AND PARTS THEREOF FOR REPLACEMENT AND REPAIR
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72215382

MIL-CLEAN

MIL-CLEAN

Filed: August 6, 1965
CHEMICAL COMPOSITION WHICH IS AN INDUSTRIAL CLEANING AGENT
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72225177

LIGCON

LIGCON

Filed: December 21, 1965
DRILLING FLUID ADDITIVE USEFUL IN THE CONTROL OF FILTRATION AND IN DISPERSING AND EMULSIFYING COMPONENTS OF THE DRILLING…
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72235008

MUD-SWEEP

MUD-SWEEP

Filed: July 27, 1967
CHEMICAL PREFLUSH PREPARATION TO INCREASE BONDING STRENGTH WHEN CEMENTING OIL WELLS
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72277236

BAKERSEAL

BAKERSEAL

Filed: July 27, 1970
THREAD SEALING AND LUBRICATING COMPOUNDS
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72366312

HAI 1950

HAI 1950

Filed: September 24, 1971
GAS ANALYZERS AND DETECTORS FOR CHEMICAL PROCESSING AND CONTROL, AND PARTS THEREFOR
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72403503

MIL-GARD

MIL-GARD

Filed: April 18, 1972
HYDROGEN SULFIDE SCAVENGER FOR OIL AND GAS WELL DRILLING AND WORKOVER
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72421710

CARBO-MUL

CARBO-MUL

Filed: April 18, 1972
CHEMICAL ADDITIVE FOR USE IN THE TREATMENT OF OIL WELL DRILLING MUD
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72421711

ECP

ECP

Filed: July 19, 1972
REINFORCED ELASTOMER PACKERS FOR USE IN SUCH AREAS AS WELL DRILLING AND PRODUCING AND IN MINING
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72430286

MAGNACIDE

MAGNACIDE

Filed: August 17, 1973
BACTERICIDES, BIOCIDES AND HERBICIDES
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 72465872

ZAP-LOK

ZAP-LOK

Filed: September 28, 1973
PIPE JOINING EQUIPMENT
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 73002310

SACKED FISHING TOOLS

SACKED FISHING TOOLS

Filed: December 8, 1975
CHEMICAL COMPOSITION FOR USE IN OIL OR GAS WELLS, PRIMARILY FOR AIDING THE RELEASE OF STUCK DRILL PIPE OR THE LIKE
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 73071236

MIL-TEMP

MIL-TEMP

Filed: August 12, 1976
CHEMICALS AND CHEMICAL COMPOSITIONS-NAMELY, A DRILLING FLUID ADDITIVE TO PREVENT THERMAL DEGRADATION OF THE SYSTEM
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 73096454

EXLOG

EXLOG

Filed: October 28, 1977
GEOLOGICAL AND ENGINEERING WELL LOGGING SERVICES TO THE OIL INDUSTRY
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 73146448

CALNOX

CALNOX

Filed: December 22, 1977
SURFACE ACTIVE AGENTS FOR INDUSTRIAL USE AND/OR SCALE INHIBITORS FOR INDUSTRIAL USE, SUCH USES BEING PARTICULARLY IN THE…
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 73153079

EXLOG

EXLOG

Filed: October 30, 1978
Geological and Engineering Well Logging Services
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 73191155

FLIP TO TRIP

FLIP TO TRIP

Filed: October 5, 1979
Electronic Apparatus for the Monitoring and Display of Data Obtained from a Subterranean Well
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 73234161

TELEDRILL

TELEDRILL

Filed: October 5, 1979
Electronic Instrumentations for the Compilation and Dissemination of Data Useful in the Drilling, Completion or Workover…
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 73234162

ODI

ODI

Filed: February 11, 1980
SUBMERSIBLE PUMPS, MOTORS AND EQUALIZERS
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 73249764

MARK III

MARK III

Filed: April 25, 1980
Basket Centrifuges
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 73259696

TELECO

TELECO

Filed: May 7, 1980
Oil and Gas Well Measurement Services and Measured Borehole Parameter Telemetry Services
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 73261124

HYCAL

HYCAL

Filed: May 22, 1980
Well Completion Fluids, Brines, Calcium Bromide, Calcium Chloride, and Zinc Bromide
Owned by: BAKER HUGHES INCORPORATED
Serial Number: 73263133