Inventor · disambiguated record
Chester E. Ramey
Also filed as: LUZZI JOHN J · LUZZI JOHN L · RAMEY CHESTER E
37 granted patents·2 pending applications·433 citations·filing 1973–2007
98Inventor score
Top patents by PatentIndex Score
39 records- 0194US4007157ASubstituted piperazines and polymeric compositions stabilized therebyCIBA GEIGY CORP·Filed 1975·Granted Feb 8, 1977·28 cites·23 claims
- 0293US4191682AHindered piperidine carboxylic acids, metal salts thereof and stabilized compositionsCIBA GEIGY CORP·Filed 1978·Granted Mar 4, 1980·25 cites·17 claims
- 0392US4191829AHindered piperidine carboxylic acids and metal salts thereofCIBA GEIGY CORP·Filed 1978·Granted Mar 4, 1980·24 cites·17 claims
- 0489US4404302AAcylated hindered hexahydropyrimidines and their use as light stabilizing agentsFERRO CORP·Filed 1982·Granted Sep 13, 1983·24 cites·35 claims
- 0588US4089842AHindered piperidine carboxylic acids, metal salts thereof and stabilized compositionsCIBA GEIGY CORP·Filed 1975·Granted May 16, 1978·31 cites·16 claims
- 0688US4069199AMetal salts of hindered piperidine carboxylic acids and stabilized compositionsCIBA GEIGY CORP·Filed 1975·Granted Jan 17, 1978·12 cites·25 claims
- 0784US3936456ASubstituted piperazine dione oxyls and hydroxides and polymer compositions stabilized therebyCIBA GEIGY CORP·Filed 1973·Granted Feb 3, 1976·20 cites·20 claims
- 0883US4031095AHindered piperidine carboxylic acids, metals salts thereof and stabilized compositionsCIBA GEIGY CORP·Filed 1975·Granted Jun 21, 1977·12 cites·14 claims
- 0982US3991012ACompositions stabilized with bicyclic hindered aminesCIBA GEIGY CORP·Filed 1975·Granted Nov 9, 1976·26 cites·10 claims
- 1081US6689893B2Shelf stable haze free liquids of overbased alkaline earth metal saltsOMG AMERICAS INC·Filed 2001·Granted Feb 10, 2004·15 cites·44 claims
- 1181US4051102ABicyclic hindered amino acids, metal salts thereof and stabilized compositionsCIBA GEIGY CORP·Filed 1975·Granted Sep 27, 1977·21 cites·14 claims
- 1278US4069196APiperidyl esters of higher di-tri-, and polybasic aliphatic carboxylic acids as stabilizers for polymeric materialsCIBA GEIGY CORP·Filed 1976·Granted Jan 17, 1978·9 cites·16 claims
- 1378US4056507AHindered piperidine carboxylic acids, metal salts thereof and stabilized compositionsCIBA GEIGY CORP·Filed 1975·Granted Nov 1, 1977·19 cites·26 claims
- 1477US4448969ACyclic ether or carbonate alkylation products of 2,2,5,5-tetramethylimidazolidin-4-one and derivatives, their preparation, and their use as stabilizers for _synthetic polymersFERRO CORP·Filed 1982·Granted May 15, 1984·13 cites·2 claims
- 1577US3939163AMetal salts of hindered piperidine carboxylic acids and stabilized compositionsCIBA GEIGY CORP·Filed 1973·Granted Feb 17, 1976·7 cites·10 claims
- 1676US4208522ASubstituted piperazine dionesCIBA GEIGY CORP·Filed 1978·Granted Jun 17, 1980·7 cites·2 claims
- 1776US4101509AHindered piperidine carboxylic acids, metal salts thereof and stabilized compositionsCIBA GEIGY CORP·Filed 1976·Granted Jul 18, 1978·8 cites·24 claims
- 1874US4804717APolymeric hindered amine light stabilizersFERRO CORP·Filed 1987·Granted Feb 14, 1989·23 cites·5 claims
- 1972US4001181AHindered piperidine carboxamide acids, metal salts thereof, and stabilized compositionsCIBA GEIGY CORP·Filed 1975·Granted Jan 4, 1977·15 cites·9 claims
- 2071US6639090B2Powdered overbased amorphous alkaline earth metal salts and processes for makingOMG AMERICAS INC·Filed 2003·Granted Oct 28, 2003·5 cites·46 claims
- 2170US6844386B2Shelf stable haze free liquids of overbased alkaline earth metal salts, processes and stabilizing halogen-containing polymers therewithHAMMOND GROUP INC·Filed 2003·Granted Jan 18, 2005·6 cites·26 claims
- 2270US4116933AHindered piperidine carboxylic acids, metal salts thereof and stabilized compositionsCIBA GEIGY CORP·Filed 1976·Granted Sep 26, 1978·6 cites·17 claims
- 2362US4067848AAlkyl alkanoate derivatives of substituted piperazine-diones and polymer compositions stabilized therebyCIBA GEIGY CORP·Filed 1976·Granted Jan 10, 1978·10 cites·13 claims
- 2460US4139520ACompositions stabilized with hindered piperidine carboxylic acids or metal salts thereofCIBA GEIGY CORP·Filed 1977·Granted Feb 13, 1979·3 cites·23 claims
- 2560US3968078AAlkyl alkanoate derivatives of substituted piperazine-diones and polymer compositions stabilized therebyCIBA GEIGY CORP·Filed 1975·Granted Jul 6, 1976·9 cites·6 claims
- 2659US4895901APolymetic hindered amine light stabilizersFERRO CORP·Filed 1988·Granted Jan 23, 1990·12 cites·20 claims
- 2756US4087406AMetal salts of hindered piperidine carboxylic acids and stabilized compositionsCIBA GEIGY CORP·Filed 1976·Granted May 2, 1978·2 cites·18 claims
- 2855US7163912B2Lubricant compositions containing an overbased amorphous alkaline earth metal salt as a metal protectantOMG AMERICAS INC·Filed 2003·Granted Jan 16, 2007·3 cites·59 claims
- 2954US3992351AAlkyl alkanoate derivatives of substituted piperazines and polymer compositions stabilized therebyCIBA GEIGY CORP·Filed 1975·Granted Nov 16, 1976·7 cites·21 claims
- 3051US4051137ASubstituted piperazine diones and polymeric compositions stabilized therebyCIBA GEIGY CORP·Filed 1975·Granted Sep 27, 1977·6 cites·1 claims
- 3151US3969316A3,5-Dialkyl-4-hydroxyphenylalkyl substituted piperazine diones and polymeric compositions stabilized therebyCIBA GEIGY CORP·Filed 1975·Granted Jul 13, 1976·6 cites·5 claims
- 3251US2008274923A1Overbased metal carboxylate calcite-containing greasesOMG AMERICAS INC·Filed 2007·Application pending·0 cites
- 3347US4007156AAcylated derivatives of substituted piperazines and polymeric compositions stabilized therebyCIBA GEIGY CORP·Filed 1975·Granted Feb 8, 1977·5 cites·23 claims
- 3447US2004162372A1Shelf stable haze free liquids of overbased alkaline earth metal salts, processes and stabilizing halogen-containing polymers therewithFiled 2004·Application pending·0 cites
- 3540US4219464AHindered piperidine carboxylic acids, metal salts thereof and stabilized compositionsCIBA GEIGY CORP·Filed 1978·Granted Aug 26, 1980·3 cites·14 claims
- 3637US5712413AProcess for the preparation of N-hydrocarbyl-substituted amides such as tert-butylacrylamide via the Ritter reaction using solid heteropolyacid catalystsLUBRIZOL CORP·Filed 1996·Granted Jan 27, 1998·5 cites·68 claims
- 3737US4203890AHindered piperidine carboxylic acids, metal salts thereof and stabilized compositionsCIBA GEIGY CORP·Filed 1978·Granted May 20, 1980·2 cites·12 claims
- 3837US4070335A3,5-Dialkyl-4-hydroxyphenylalkyl substituted piperazine diones and polymeric compositions stabilized therebyCIBA GEIGY CORP·Filed 1976·Granted Jan 24, 1978·2 cites·11 claims
- 3936US4125517ASubstituted piperazine diones and polymeric compositions stabilized therebyCIBA GEIGY CORP·Filed 1977·Granted Nov 14, 1978·2 cites·18 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →