Inventor
RANKEN PAUL F
US23 patents
Patents
23 patentsUS4595742AJun 17, 1986
Di(alkylthio)diamine chain extenders for polyurethane elastomers
ETHYL CORP49 citations92
US4515945AMay 7, 1985
N-Alkyl-4-(4-pyridinyl)isatoic anhydrides
ETHYL CORP31 citations92
US4594453AJun 10, 1986
Process for preparing (hydrocarbylthio)aromatic amines
ETHYL CORP20 citations82
US4324920AApr 13, 1982
Process for the preparation of ortho-(hydrocarbylthio)-phenols
ETHYL CORP18 citations82
US4982002AJan 1, 1991
Methylthio substituted diaminotoluenes
ETHYL CORP9 citations74
US4670597AJun 2, 1987
Process for preparing (hydrocarbylthio) aromatic amines
ETHYL CORP7 citations74
US4278516AJul 14, 1981
Method for the preparation of 2-fluoro-4-monobromomethylbiphenyl
ETHYL CORP7 citations71
US4866209ASep 12, 1989
Poly(hydrocarbylthio)anilines
ETHYL CORP4 citations63
US4760188AJul 26, 1988
Substituted diaminotoluene
ETHYL CORP5 citations63
US4602113AJul 22, 1986
(Hydrocarbylthio) phenols and their preparation
ETHYL CORP3 citations63
US4533753AAug 6, 1985
(Hydrocarbylthio)phenols and their preparation
ETHYL CORP3 citations63
US4889955ADec 26, 1989
Preparation of (hydrocarbylthio)aromatic amines
ETHYL CORP5 citations62
US4554352ANov 19, 1985
Preparation of 1-alkyl-1,4-dihydro-4-oxo-7-(4-pyridyl)-3-quinolinecarboxylic acid
ETHYL CORP4 citations62
US4552966ANov 12, 1985
2-Nitro-4-(4-pyridinyl) benzoic acids and derivatives
ETHYL CORP2 citations62
US4547593AOct 15, 1985
Preparation of (hydrocarbylthio)phenols
ETHYL CORP2 citations62
US4524203AJun 18, 1985
4-(4-Pyridinyl)isatoic anhydride
ETHYL CORP3 citations62
US4422979ADec 27, 1983
Fluoro-substituted biphenylyl compounds and processes
ETHYL CORP5 citations60
US4371473AFeb 1, 1983
Preparation of 2-(2-fluoro-4-biphenylyl)propionic acid and corresponding nitride
ETHYL CORP3 citations60
US5084213AJan 28, 1992
Mixed halogenation of cyclododecatriene
ETHYL CORP1 citations52
US4532326AJul 30, 1985
Decarboxylation process for preparing 4-(3-aminophenyl)pyridines
ETHYL CORP0 citations52
US4649202AMar 10, 1987
Brominative aromatization of 4-cyclohexenylpyridines
ETHYL CORP0 citations51
US4604467AAug 5, 1986
Certain 4-(3,4-dibromocyclohexyl)pyridines
ETHYL CORP0 citations51
US4727148AFeb 23, 1988
Certain aromatization process for preparing 1-alkyl-1,4-dihydro-4-oxo-7-(4-pyridyl)-3-quinoline carboxylic acid
ETHYL CORP0 citations41