NEAT
Filed: August 29, 1984
SERVICE FOR CLEANING DRILL CUTTINGS PRIOR TO DISPOSAL
Owned by: NL Industries, Inc.
Serial Number: 73497254
SEA-MUL
Filed: August 29, 1984
DRILLING FLUID ADDITIVE
Owned by: NL Industries, Inc.
Serial Number: 73497255
SUSPENDTONE
Filed: August 30, 1984
Foundry Mold Wash Additive
Owned by: NL Industries, Inc.
Serial Number: 73497272
SULFA-CHECK
Filed: October 9, 1984
PROVIDING A SERVICE FOR OPERATING AND MAINTAINING A PROCESS FOR REMOVING HYDROGEN SULFIDE FROM GAS STREAMS
Owned by: NL Industries, Inc.
Serial Number: 73503108
HOLEPLUG
Filed: November 23, 1984
COLLOIDAL CLAYS, ESPECIALLY BENTONITE
Owned by: NL Industries, Inc.
Serial Number: 73510340
RECORDED LITHOLOGY LOG
Filed: March 1, 1985
RECORDED LITHOLOGY LOGGING SERVICES TO THE OIL INDUSTRY COMPRISING PROVIDING GAMMA RAY, RESISTIVITY, AND CONDUCTIVITY LOGS…
Owned by: NL Industries, Inc.
Serial Number: 73524779
NL ERCO
Filed: March 7, 1985
RESERVOIR ENGINEERING AND GEOLOGICAL SERVICES RELATED TO THE PETROLEUM INDUSTRY
Owned by: NL Industries, Inc.
Serial Number: 73525749
NL
Filed: April 12, 1985
TITANIUM DIOXIDE FOR GENERAL INDUSTRIAL USE
Owned by: NL Industries, Inc.
Serial Number: 73532066
BARA
Filed: September 9, 1985
MICROBIOCIDES FOR USE IN THE OIL, GAS AND MINERALS DRILLING AND PRODUCTION INDUSTRY
Owned by: NL Industries, Inc.
Serial Number: 73557573
DRILLING & SERVICE
Filed: July 21, 1986
DRILL BITS FOR WELL DRILLING; WELL CORING TOOLS
Owned by: NL Industries, Inc.
Serial Number: 73610409
PAC
Filed: January 20, 1987
POLYANIONIC CELLULOSE POLYMER DRILLING FLUID ADDITIVE FOR USE IN DRILLING OIL WELLS AND OTHER EARTH BOREHOLES
Owned by: NL Industries, Inc.
Serial Number: 73640619
MUDMAN
Filed: March 13, 1987
COMPUTER AIDED DIAGNOSIS OF DRILLING FLUIDS
Owned by: NL Industries, Inc.
Serial Number: 73649242
MUDMAN
Filed: June 5, 1987
COMPUTER AIDED DIAGNOSIS OF AND TREATMENT RECOMMENDATIONS FOR DRILLING FLUIDS
Owned by: NL Industries, Inc.
Serial Number: 73664873
CELLEX
Filed: October 13, 1987
DRILLING MUD ADDITIVES COMPRISING SODIUM CARBOXYMETHYL CELLULOSE
Owned by: NL Industries, Inc.
Serial Number: 73689306
