Inventor · disambiguated record
Paul F. Ranken
Also filed as: RANKEN PAUL F
23 granted patents·5 pending applications·181 citations·filing 1979–2007
95Inventor score
Top patents by PatentIndex Score
28 records- 0194US4515945AN-Alkyl-4-(4-pyridinyl)isatoic anhydridesETHYL CORP·Filed 1983·Granted May 7, 1985·31 cites·3 claims
- 0291US4595742ADi(alkylthio)diamine chain extenders for polyurethane elastomersETHYL CORP·Filed 1985·Granted Jun 17, 1986·49 cites·30 claims
- 0389US4594453AProcess for preparing (hydrocarbylthio)aromatic aminesETHYL CORP·Filed 1984·Granted Jun 10, 1986·20 cites·11 claims
- 0484US4324920AProcess for the preparation of ortho-(hydrocarbylthio)-phenolsETHYL CORP·Filed 1980·Granted Apr 13, 1982·18 cites·12 claims
- 0573US4982002AMethylthio substituted diaminotoluenesETHYL CORP·Filed 1989·Granted Jan 1, 1991·9 cites·2 claims
- 0668US4278516AMethod for the preparation of 2-fluoro-4-monobromomethylbiphenylETHYL CORP·Filed 1979·Granted Jul 14, 1981·7 cites·4 claims
- 0764US4670597AProcess for preparing (hydrocarbylthio) aromatic aminesETHYL CORP·Filed 1985·Granted Jun 2, 1987·7 cites·8 claims
- 0862US4760188ASubstituted diaminotolueneETHYL CORP·Filed 1986·Granted Jul 26, 1988·5 cites·1 claims
- 0960US4554352APreparation of 1-alkyl-1,4-dihydro-4-oxo-7-(4-pyridyl)-3-quinolinecarboxylic acidETHYL CORP·Filed 1983·Granted Nov 19, 1985·4 cites·4 claims
- 1058US4889955APreparation of (hydrocarbylthio)aromatic aminesETHYL CORP·Filed 1988·Granted Dec 26, 1989·5 cites·12 claims
- 1157US4866209APoly(hydrocarbylthio)anilinesETHYL CORP·Filed 1988·Granted Sep 12, 1989·4 cites·10 claims
- 1257US4524203A4-(4-Pyridinyl)isatoic anhydrideETHYL CORP·Filed 1983·Granted Jun 18, 1985·3 cites·2 claims
- 1355US4422979AFluoro-substituted biphenylyl compounds and processesETHYL CORP·Filed 1982·Granted Dec 27, 1983·5 cites·5 claims
- 1451US4552966A2-Nitro-4-(4-pyridinyl) benzoic acids and derivativesETHYL CORP·Filed 1983·Granted Nov 12, 1985·2 cites·4 claims
- 1547US2008200573A1Flame Retarded Styrenic Foams and Foam PrecursorsALBEMARLE CORP·Filed 2006·Application pending·0 cites
- 1646US4547593APreparation of (hydrocarbylthio)phenolsETHYL CORP·Filed 1984·Granted Oct 15, 1985·2 cites·8 claims
- 1746US4371473APreparation of 2-(2-fluoro-4-biphenylyl)propionic acid and corresponding nitrideETHYL CORP·Filed 1980·Granted Feb 1, 1983·3 cites·7 claims
- 1846US2008058558A1Preparation of decabromodiphenyl oxideALBEMARLE CORP·Filed 2007·Application pending·0 cites
- 1945US2009247804A1Methods for conversion of methane to useful hydrocarbons and catalysts for use thereinALBEMARLE CORP·Filed 2007·Application pending·0 cites
- 2038US2004209967A1Flame retarded styrenic polymer foamsFiled 2003·Application pending·0 cites
- 2137US2005075024A1Flame retardant epoxy prepregs, laminates, and printed wiring boards of enhanced thermal stabilityFiled 2003·Application pending·0 cites
- 2236US4533753A(Hydrocarbylthio)phenols and their preparationETHYL CORP·Filed 1983·Granted Aug 6, 1985·3 cites·24 claims
- 2335US4532326ADecarboxylation process for preparing 4-(3-aminophenyl)pyridinesETHYL CORP·Filed 1983·Granted Jul 30, 1985·0 cites·5 claims
- 2434US4604467ACertain 4-(3,4-dibromocyclohexyl)pyridinesETHYL CORP·Filed 1985·Granted Aug 5, 1986·0 cites·3 claims
- 2534US4602113A(Hydrocarbylthio) phenols and their preparationETHYL CORP·Filed 1983·Granted Jul 22, 1986·3 cites·11 claims
- 2632US4649202ABrominative aromatization of 4-cyclohexenylpyridinesETHYL CORP·Filed 1985·Granted Mar 10, 1987·0 cites·12 claims
- 2731US5084213AMixed halogenation of cyclododecatrieneETHYL CORP·Filed 1990·Granted Jan 28, 1992·1 cites·8 claims
- 2830US4727148ACertain aromatization process for preparing 1-alkyl-1,4-dihydro-4-oxo-7-(4-pyridyl)-3-quinoline carboxylic acidETHYL CORP·Filed 1986·Granted Feb 23, 1988·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →