PFR-I
Filed: July 23, 1987
BLEND OF ASPHALTIC BITIMUM FOR USE IN A DRILLING FLUID IN THE DRILLING OF OIL AND GAS
Owned by: PETROLITH MUD, INC.
Serial Number: 73673873
PFR-L
Filed: July 23, 1987
LIQUID FILTRATION CONTROL ADDITIVE FOR USE IN A DRILLING FLUID IN THE DRILLING OF OIL AND GAS WELLS
Owned by: PETROLITH MUD, INC.
Serial Number: 73673874
PETRO-MUL I
Filed: July 23, 1987
BASIC FATTY ACID EMULSIFIER FORMING A WATER-IN-OIL INVERT EMULSION FOR USE AS A DRILLING FLUID IN THE DRILLING OF OIL AND…
Owned by: PETROLITH MUD, INC.
Serial Number: 73673875
PETRO-SEAL
Filed: July 23, 1987
ASPHALTIC BASE MATERIAL FOR USE AS A LOST CIRCULATION MATERIAL IN OIL BASED DRILLING FLUIDS
Owned by: PETROLITH MUD, INC.
Serial Number: 73673877
PWA-34
Filed: July 23, 1987
OIL WETTING AGENT AND THINNER FOR USE IN A DRILLING FLUID IN THE DRILLING OF OIL AND GAS WELLS
Owned by: PETROLITH MUD, INC.
Serial Number: 73673878
PETRO-MUL II
Filed: July 23, 1987
LIQUID BLEND OF EMULSIFIERS AND WETTING AGENTS FOR USE IN A DRILLING FLUID IN THE DRILLING OF OIL AND GAS WELLS
Owned by: PETROLITH MUD, INC.
Serial Number: 73673879
PMI
Filed: July 23, 1987
CONSULTING SERVICES IN THE FIELD OF OIL MUD SYSTEMS
Owned by: PETROLITH MUD, INC.
Serial Number: 73673880
PFR-II
Filed: July 23, 1987
OIL-DISPERSABLE AMINE LIGNITE FOR USE IN A DRILLING FLUID IN THE DRILLING OF OIL AND GAS WELLS
Owned by: PETROLITH MUD, INC.
Serial Number: 73673881
PMG-50
Filed: July 23, 1987
VISCOSIFYING AGENT FOR USE IN A DRILLING FLUID IN THE DRILLING OF OIL AND GAS WELLS
Owned by: PETROLITH MUD, INC.
Serial Number: 73673894
