TANSUL
Filed: October 21, 1920
Material for Chill-Proofing and Stabilizing Beverages
Owned by: NL Industries, Inc.
Serial Number: 71138621
AQUAGEL
Filed: May 25, 1927
WATERPROOFING MATERIAL FOR USE IN CONCRETE OR THE LIKE
Owned by: NL Industries, Inc.
Serial Number: 71249512
MACALOID
Filed: May 17, 1962
Thickening or Suspending Agent in the Form of Refined Clay for Cosmetics
Owned by: NL Industries, Inc.
Serial Number: 72144847
HANA
Filed: January 30, 1963
Inside Latch Sets, Inside Lock Sets, Inside Emergency Bath Lock Sets, Inside Closet Latch Sets, Key-in-Knob Lock Sets, Cylinder…
Owned by: NL Industries, Inc.
Serial Number: 72161689
KIM
Filed: January 30, 1963
Inside Latch Sets, Inside Lock Sets, Inside Emergency Bath Lock Sets, Inside Closet Latch Sets, Key-In-Knob Lock Sets, Cylinder…
Owned by: NL Industries, Inc.
Serial Number: 72161690
BARONITE
Filed: April 29, 1966
FOUNDRY SAND BINDER
Owned by: NL Industries, Inc.
Serial Number: 72244607
K-FIL
Filed: January 20, 1972
DIELECTRIC COMPOUNDS FOR USE AS PLASTIC FILLERS
Owned by: NL Industries, Inc.
Serial Number: 72413257
GEL CON
Filed: March 10, 1972
ULTRA-HIGH YIELD VISCOSIFIER AND WALL-BUILDING AGENT FOR FRESH WATER MUD FOR USE IN THE WELL DRILLING INDUSTRY
Owned by: NL Industries, Inc.
Serial Number: 72417994
BARASYM
Filed: March 13, 1972
SYNTHETIC MINERALS WHICH ARE USEFUL AS ABSORBENTS, FILLERS, CATALYSTS, PIGMENTS AND GELLANTS
Owned by: NL Industries, Inc.
Serial Number: 72418189
ROLOK
Filed: May 10, 1972
TWIST FASTENERS-NAMELY, SCREWS AND BOLTS
Owned by: NL Industries, Inc.
Serial Number: 72423911
NYKON
Filed: September 11, 1974
ORGANIC AMMONIUM MONTMORILLONITE FOR THICKENING LUBRICANTS
Owned by: NL Industries, Inc.
Serial Number: 73031783
NL
Filed: September 27, 1976
PAINTS
Owned by: NL Industries, Inc.
Serial Number: 73101243
NL
Filed: October 4, 1976
SCREWS AND FASTENERS
Owned by: NL Industries, Inc.
Serial Number: 73102053
NL
Filed: October 12, 1976
DIE CASTINGS
Owned by: NL Industries, Inc.
Serial Number: 73102909
NL
Filed: March 14, 1977
CHEMICAL PRODUCTS FOR DRILLING FLUIDS AND COMPLETION FLUIDS USED IN OIL, WATER AND GAS PRODUCTION AND IN MINERAL EXPLORATION…
Owned by: NL Industries, Inc.
Serial Number: 73116560
OMEGA DOME
Filed: March 11, 1977
OIL WELL PERFORATORS
Owned by: NL Industries, Inc.
Serial Number: 73118792
NL
Filed: April 8, 1977
APPARATUS AND INSTRUMENTS FOR TESTING DRILLING MUD, WATER, CORROSION, WELL CORES, WELL CUTTINGS, AND CLAY AND MINERAL SUSPENSIONS…
Owned by: NL Industries, Inc.
Serial Number: 73122037
SLIK
Filed: September 6, 1977
GENERAL CLEANING AGENT PRIMARILY FOR REMOVING DEPOSITS OF GREASE AND DIRT
Owned by: NL Industries, Inc.
Serial Number: 73140207
DROP
Filed: October 3, 1977
CHEMICAL FOR TREATING OILS, INCLUDING A DESALTING COMPOUND, AND A DEMULSIFIER DESIGNED TO FAVORABLY ALTER THE FORCES THAT…
Owned by: NL Industries, Inc.
Serial Number: 73143338
TAMET
Filed: October 21, 1977
FURNACE FORMED REFRACTORY SHAPES SUCH AS BRICKS, BLOCKS, TUBES AND REFRACTORY CEMENTS
Owned by: NL Industries, Inc.
Serial Number: 73145495
KOOMEY
Filed: September 24, 1979
Blow-Out Preventer Controls-Namely, Accumulator/Pump Units, Auxiliary Remote Control Panels, Drillers Panels, and Interconnect…
Owned by: NL Industries, Inc.
Serial Number: 73232515
DOEHLERCORE
Filed: November 30, -0001
DIE CASTING PROCESS AND PRODUCTION OF SPECIALIZED CASTINGS OF METALS
Owned by: NL Industries, Inc.
Serial Number: 73329166
NL NU-LINE
Filed: November 27, 1981
Oil Well Perforators
Owned by: NL Industries, Inc.
Serial Number: 73338987
BARPOL
Filed: January 29, 1982
Cellulose Derivatives for Use in Well Drilling, Workover and Completion Fluids
Owned by: NL Industries, Inc.
Serial Number: 73347882
DRIVFAST
Filed: June 24, 1982
THREADED FASTENERS
Owned by: NL Industries, Inc.
Serial Number: 73371442
POLY-FULL-BODY
Filed: June 24, 1982
THREADED FASTENERS
Owned by: NL Industries, Inc.
Serial Number: 73371443
NL SHAFFER
Filed: September 29, 1982
Metal, and Manually-Operated Gate Valves
Owned by: NL Industries, Inc.
Serial Number: 73392332
NL DRILLCOM
Filed: January 27, 1983
INCLUDING GATHERING, PROCESSING AND INTERPRETING OIL FIELD INFORMATION INCLUDING MEASUREMENT WHILE DRILLING AND LOGGING
Owned by: NL Industries, Inc.
Serial Number: 73411225
DRILLCOM
Filed: March 17, 1983
SERVICES INCLUDING GATHERING, PROCESSING AND INTERPRETING OIL FIELD INFORMATION INCLUDING MEASUREMENT WHILE DRILLING AND…
Owned by: NL Industries, Inc.
Serial Number: 73417677
BARACOAT
Filed: April 20, 1983
Compositions for Use in Mold and Core Washes for Use in the Casting Industry
Owned by: NL Industries, Inc.
Serial Number: 73422460
BAR-GAIN
Filed: May 23, 1983
SELLING OF WEIGHTING MATERIALS FOR DRILLING MUDS; FORMULATING WEIGHTED DRILLING MUDS
Owned by: NL Industries, Inc.
Serial Number: 73427368
ENVIROMUL
Filed: May 23, 1983
SELLING AND FORMULATING NON-TOXIC WELL FLUIDS
Owned by: NL Industries, Inc.
Serial Number: 73427370
Image Trademark
Filed: May 27, 1983
Coated Pigments for Use in the Manufacture of Paint Systems
Owned by: NL Industries, Inc.
Serial Number: 73427804
COAT
Filed: June 22, 1983
Microbiostat to Control the Growth of Aerobic and Anaerobic Bacteria in Aqueous Mediums, in Industrial Use
Owned by: NL Industries, Inc.
Serial Number: 73431392
MWD SYSTEM 1000
Filed: July 22, 1983
PROVIDING LOGGING AND MONITORING INFORMATION FOR OTHERS DURING EARTH BOREHOLE DRILLING
Owned by: NL Industries, Inc.
Serial Number: 73435779
MWD SYSTEMS
Filed: October 20, 1983
PROVIDING LOGGING AND MONITORING INFORMATION FOR OTHERS DURING EARTH BOREHOLE DRILLING
Owned by: NL Industries, Inc.
Serial Number: 73448902
QUIK-THIN
Filed: November 9, 1983
Mud Thinner for Seismic and Water Well Drilling
Owned by: NL Industries, Inc.
Serial Number: 73451980
BARA
Filed: April 23, 1984
CHEMICALS, NAMELY MICROBIOCIDES
Owned by: NL Industries, Inc.
Serial Number: 73476944
X-TEND
Filed: August 20, 1984
DRILLING FLUID ADDITIVE
Owned by: NL Industries, Inc.
Serial Number: 73495657
MUD GEL
Filed: August 30, 1984
DRILLING FLUID ADDITIVE
Owned by: NL Industries, Inc.
Serial Number: 73497227
