TANNATHIN
Filed: July 7, 1947
CHEMICAL GOODS CONSISTING OF ADDITIVES FOR OIL WELL DRILLING MUDS
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 71528085
MY-LO-JEL
Filed: July 7, 1947
[ GOODS CONSISTING OF ] ADDITIVES FOR OIL WELL DRILLING MUDS-NAMELY, GELATINIZED CORN STARCH
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 71528103
SALT GEL
Filed: January 26, 1953
DRY GROUND NATIVE CLAY
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 71642112
BIT LUBE
Filed: May 16, 1968
LUBRICANT FOR DRILLING FLUIDS
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 72298667
MAGCOBAR
Filed: September 2, 1970
ADDITIVE FOR DRILLING FLUIDS IN OIL AND GAS WELLS
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 72369668
RHE CON O
Filed: September 14, 1970
LIGNOSULPHONATE MUD THINNER AND CONDITIONER FOR USE IN DRILLING
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 72370562
POLYBRINE
Filed: May 25, 1971
DRILLING MUD ADDITIVE FOR VISCOSITY AND FLUID LOSS CONTROL
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 72393048
MAGCOBAR
Filed: January 19, 1972
SERVICES IN CONNECTION WITH OIL WELL DRILLING OPERATIONS INCLUDING TECHNICAL ADVICE ON DRILLING MUDS AND DRILLING MUD USE…
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 72413046
BIT LUBE II
Filed: December 11, 1978
Additive for Drilling Fluid for Oil Field Use to Improve Lubricating Properties
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 73196575
FB
Filed: September 19, 1980
Fluid Control Grade Sodium Bentonite Clay Used as a Sealant and Lubricant for Oil Well Drilling Applications
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 73278498
LUBE-106
Filed: June 1, 1982
a Completely Water-Dispersible, Non Flourescent, Foam Resistant Lubricating Additive which Is a Specially Prepared Blend…
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 73367353
KEN CAL-L
Filed: March 9, 1984
Chemicals for Use in Oil and Gas Well Drilling-Namely, an Additive for Stabilizing Viscosity in Drilling, Workover, and…
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 73469446
SPERSENE CF
Filed: October 30, 1986
CHEMICAL ADDITIVE FOR DRILLING FLUIDS USED IN OIL AND GAS WELL DRILLING OPERATIONS
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 73627828
MELANEX-T
Filed: March 7, 1988
ANIONIC LOW MOLECULAR WEIGHT MELANIN POLYMER DESIGNED AS A DEFLOCCULANT AND RHEOLOGICAL STABILIZER IN WATER-BASED MUDS FOR…
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 73714963
POLY-SAL
Filed: May 18, 1988
A WATER DISPERSIBLE POLYMER FOR USE IN DRILLING FLUIDS
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 73729052
DEFOAM
Filed: May 18, 1988
ADDITIVES FOR DRILLING FLUIDS AND SPECIFICALLY DEFOAMING AGENTS
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 73729055
VERSAGEL
Filed: August 8, 1988
CHEMICAL OIL DRILLING FLUID ADDITIVES
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 73744832
DURATHERM
Filed: December 27, 1988
TECHNICAL CONSULTING SERVICES IN THE FIELD OF OIL AND GAS WELL DRILLING OPERATIONS, NAMELY FOR DRILLING FLUIDS AND DRILLING…
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 73771408
SHALE CHEK
Filed: April 25, 1990
a water base drilling fluid additive
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 74052918
MCAT
Filed: August 5, 1992
muds for use in the oil well drilling industry
Owned by: M-I DRILLING FLUIDS COMPANY
Serial Number: 74302229
