BUNTING
Filed: December 3, 1917
BRONZE BUSHINGS
Owned by: N.L. INDUSTRIES, INC.
Serial Number: 71107716
HYDROCAST
Filed: June 4, 1937
REFRACTORY MATERIAL-NAMELY, AN ALUMINUM SILICATE BASE AND A HYDRAULIC CEMENT BOND, WITH WHICH WATER IS MIXED FOR PROVIDING…
Owned by: N.L. INDUSTRIES, INC.
Serial Number: 71393678
OLD HICKORY
Filed: April 26, 1939
LEAD AND LEAD ALLOYS, PARTICULARLY RABBITT METAL
Owned by: N.L. INDUSTRIES, INC.
Serial Number: 71418738
PHOENIX
Filed: April 26, 1939
LEAD AND LEAD ALLOYS, PARTICULARLY BABBITT METAL
Owned by: N.L. INDUSTRIES, INC.
Serial Number: 71418739
SMENTOX
Filed: October 14, 1939
Chemical Compounds for Treating Oil Well Drilling Muds
Owned by: N.L. INDUSTRIES, INC.
Serial Number: 71424552
LECTRO "60"
Filed: April 25, 1956
BASIC LEAD SILICO-CHLORIDE COMPLEXES USEFUL AS STABILIZERS FOR VINYL RESINS
Owned by: N.L. INDUSTRIES, INC.
Serial Number: 72007104
BAROID
Filed: February 19, 1957
HYDROMETERS, DENSITOMETERS, VISCOMETERS, BALANCES, FILTER TESTERS, SAND CONTENT TESTERS, PH TESTERS, ALKALIMETERS, ION TESTERS…
Owned by: N.L. INDUSTRIES, INC.
Serial Number: 72024708
BAROID
Filed: February 19, 1957
WELL-LOGGING SERVICE, AND THE RENTAL OF WELL-LOGGING EQUIPMENT
Owned by: N.L. INDUSTRIES, INC.
Serial Number: 72024711
DRILFOAM
Filed: March 14, 1977
FOAMING AGENT USED IN WATER, OIL AND GAS WELL DRILLING OPERATIONS AND IN MINERAL EXPLORATION AIR DRILLING
Owned by: N.L. INDUSTRIES, INC.
Serial Number: 73116568
TRIP-WATE
Filed: September 6, 1977
AN ADDITIVE IN OIL AND GAS DRILLING AND COMPLETION OPERATIONS
Owned by: N.L. INDUSTRIES, INC.
Serial Number: 73140211
DEFLAKE
Owned by: N.L. INDUSTRIES, INC.
Serial Number: 81044639
