Chester E. Ramey
37Patents
10h-index
9Co-inventors
68Inventor score
Filing activity: Jul 16, 1973 → Sep 19, 2003
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4089842A | Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions | Chemistry; Metallurgy | 17 | Expired |
| US4056507A | Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions | Chemistry; Metallurgy | 16 | Expired |
| US4804717A | Polymeric hindered amine light stabilizers | Chemistry; Metallurgy | 16 | Expired |
| US4007157A | Substituted piperazines and polymeric compositions stabilized thereby | Chemistry; Metallurgy | 14 | Expired |
| US3936456A | Substituted piperazine dione oxyls and hydroxides and polymer compositions stabilized thereby | Chemistry; Metallurgy | 12 | Expired |
| US4191829A | Hindered piperidine carboxylic acids and metal salts thereof | Chemistry; Metallurgy | 11 | Expired |
| US4191682A | Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions | Chemistry; Metallurgy | 11 | Expired |
| US3991012A | Compositions stabilized with bicyclic hindered amines | Chemistry; Metallurgy | 11 | Expired |
| US4404302A | Acylated hindered hexahydropyrimidines and their use as light stabilizing agents | Chemistry; Metallurgy | 10 | Expired |
| US4051102A | Bicyclic hindered amino acids, metal salts thereof and stabilized compositions | Chemistry; Metallurgy | 10 | Expired |
| US4031095A | Hindered piperidine carboxylic acids, metals salts thereof and stabilized compositions | Chemistry; Metallurgy | 10 | Expired |
| US4001181A | Hindered piperidine carboxamide acids, metal salts thereof, and stabilized compositions | Chemistry; Metallurgy | 9 | Expired |
| US4069199A | Metal salts of hindered piperidine carboxylic acids and stabilized compositions | Chemistry; Metallurgy | 8 | Expired |
| US3939163A | Metal salts of hindered piperidine carboxylic acids and stabilized compositions | Chemistry; Metallurgy | 7 | Expired |
| US4895901A | Polymetic hindered amine light stabilizers | Chemistry; Metallurgy | 7 | Expired |
| US4069196A | Piperidyl esters of higher di-tri-, and polybasic aliphatic carboxylic acids as stabilizers for polymeric materials | Chemistry; Metallurgy | 6 | Expired |
| US4208522A | Substituted piperazine diones | Chemistry; Metallurgy | 6 | Expired |
| US6689893B2 | Shelf stable haze free liquids of overbased alkaline earth metal salts | Chemistry; Metallurgy | 5 | Expired |
| US4101509A | Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions | Chemistry; Metallurgy | 5 | Expired |
| US4051137A | Substituted piperazine diones and polymeric compositions stabilized thereby | Chemistry; Metallurgy | 5 | Expired |
| US3969316A | 3,5-Dialkyl-4-hydroxyphenylalkyl substituted piperazine diones and polymeric compositions stabilized thereby | Chemistry; Metallurgy | 5 | Expired |
| US4448969A | Cyclic ether or carbonate alkylation products of 2,2,5,5-tetramethylimidazolidin-4-one and derivatives, their preparation, and their use as stabilizers for _synthetic polymers | Chemistry; Metallurgy | 5 | Expired |
| US4116933A | Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions | Chemistry; Metallurgy | 5 | Expired |
| US3968078A | Alkyl alkanoate derivatives of substituted piperazine-diones and polymer compositions stabilized thereby | Chemistry; Metallurgy | 4 | Expired |
| US4007156A | Acylated derivatives of substituted piperazines and polymeric compositions stabilized thereby | Chemistry; Metallurgy | 4 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.