Inventor
KREH ROBERT P
US19 patents
⚠️ This page may combine multiple inventors who share the name “KREH ROBERT P”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
GRACE W R & CO
18 patentsUS5130052AJul 14, 1992
Corrosion inhibition with water-soluble rare earth chelates
GRACE W R & CO60 citations96
US5022926AJun 11, 1991
Corrosion control
GRACE W R & CO38 citations91
US5183573AFeb 2, 1993
Multipurpose scale preventer/remover
GRACE W R & CO24 citations90
US5183590AFeb 2, 1993
Corrosion inhibitors
GRACE W R & CO43 citations90
US5223146AJun 29, 1993
Dispersion of iron (III) oxides using certain dihydroxaromatic compounds
GRACE W R & CO18 citations82
US4701245AOct 20, 1987
Oxidation of organic compounds using a catalyzed cerium (IV) composition
GRACE W R & CO19 citations82
US4647349AMar 3, 1987
Oxidation of organic compounds using ceric ions in aqueous trifluoromethanesulfonic acid
GRACE W R & CO21 citations82
US4639298AJan 27, 1987
Oxidation of organic compounds using ceric ions in aqueous methanesulfonic acid
GRACE W R & CO24 citations82
US5183574AFeb 2, 1993
Method of dispersing iron
GRACE W R & CO18 citations81
US5139702AAug 18, 1992
Naphthylamine polycarboxylic acids
GRACE W R & CO18 citations81
US4670108AJun 2, 1987
Oxidation of organic compounds using ceric methanesulfonate in an aqueous organic solution
GRACE W R & CO17 citations74
US5171477ADec 15, 1992
Corrosion inhibition in chelant solutions
GRACE W R & CO15 citations73
US4794172ADec 27, 1988
Ceric oxidant
GRACE W R & CO11 citations73
US5344590ASep 6, 1994
Method for inhibiting corrosion of metals using polytartaric acids
GRACE W R & CO12 citations72
US4692227ASep 8, 1987
Oxidation of organic compounds using thallium ions
GRACE W R & CO5 citations63
US5102467AApr 7, 1992
Novel cement additives and hydraulic cement mixes containing them
GRACE W R & CO2 citations62
US4935205AJun 19, 1990
Corrosion inhibition
GRACE W R & CO4 citations60
US5073339ADec 17, 1991
Method of inhibiting corrosion and scale formation in aqueous systems
GRACE W R & CO1 citations52