Inventor
RIES DONALD G
US14 patents
⚠️ This page may combine multiple inventors who share the name “RIES DONALD G”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NALCO CHEMICAL CO
13 patentsUS4600518AJul 15, 1986
Choline for neutralizing naphthenic acid in fuel and lubricating oils
NALCO CHEMICAL CO36 citations92
US4502965AMar 5, 1985
Terpolymers for use as high temperature fluid loss additive and rheology stabilizer for high pressure, high temperature oil well drilling fluids
NALCO CHEMICAL CO21 citations81
US4837283AJun 6, 1989
Monomeric, oligomeric and polymeric sulfonates
NALCO CHEMICAL CO8 citations73
US4555558ANov 26, 1985
Terpolymers of 2-acrylamido-2-methylpropane-sulfonic acid, sodium salt (AMPS), N,N-dimethylacrylamide, and acrylonitrile
NALCO CHEMICAL CO8 citations73
US4544722AOct 1, 1985
Water-soluble terpolymers of 2-acrylamido-2-methylpropane-sulfonic acid, sodium salt (AMPS), n-vinylpyrrolidone and acrylonitrile
NALCO CHEMICAL CO15 citations73
US4502964AMar 5, 1985
Terpolymers for use as high temperature fluid loss additive and rheology stabilizer for high pressure, high temperature oil well drilling fluids
NALCO CHEMICAL CO18 citations73
US4502966AMar 5, 1985
Terpolymers for use as high temperature fluid loss additive and rheology stabilizer for high pressure, high temperature oil well drilling fluids
NALCO CHEMICAL CO15 citations73
US4845289AJul 4, 1989
Procedure for the removal or reduction of residual trimethylamine odor from its reaction products
NALCO CHEMICAL CO15 citations72
US4574061AMar 4, 1986
Alkoxy aryl sulfonate surfactants
NALCO CHEMICAL CO4 citations62
US4544719AOct 1, 1985
Water-soluble polymers containing 2-acrylamido-2-methylpropane-sulfonic acid, sodium salt (AMPS)-acrylamide-N,N-diallylacetamide
NALCO CHEMICAL CO5 citations62
US3981798ASep 21, 1976
Liquid/liquid extraction using certain ethers and esters
NALCO CHEMICAL CO6 citations62
US4172787AOct 30, 1979
Reaction of α-phosphorus containing carboxylic acids with phosphorous acid to prepare scale and corrosion inhibitors
NALCO CHEMICAL CO4 citations61
US4138431AFeb 6, 1979
Reaction of α-phosphorus containing carboxylic acids with phosphorous acid to prepare scale and corrosion inhibitors
NALCO CHEMICAL CO4 citations61