MUD-MATE
Filed: October 29, 1981
Chemicals for Treating Drilling Mud Clay Used in Drilling Oil Wells-Namely, Additives to Reduce Rotary Torque on Drilling…
Owned by: Coleman; Willis W.
Serial Number: 73334715
COLORONA
Filed: October 29, 1981
Chemicals-Namely, Pearlescent Pigments Sold Only for Use in the Manufacture of Cosmetics
Owned by: MERCK KGAA
Serial Number: 73334717
PETROTONE
Filed: October 29, 1981
Reaction Products of Organic Amines and Zeolitic Clays for Use as Additives in Oil Base and Oil Emulsion Drilling Fluids
Owned by: HALLIBURTON ENERGY SERVICES, INC.
Serial Number: 73334721
B
Filed: October 29, 1981
Chemicals Used to Process Dental X-Ray Film
Owned by: FUJIFILM HUNT CHEMICALS U.S.A., INC.
Serial Number: 73334758
A
Filed: October 29, 1981
Chemicals Used to Process Dental X-Ray Film
Owned by: FUJIFILM HUNT CHEMICALS U.S.A., INC.
Serial Number: 73334759
