Inventor
RAMEY CHESTER E
US37 patents
⚠️ This page may combine multiple inventors who share the name “RAMEY CHESTER E”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
CIBA GEIGY CORP
28 patentsUS4089842AMay 16, 1978
Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions
CIBA GEIGY CORP31 citations92
US4191829AMar 4, 1980
Hindered piperidine carboxylic acids and metal salts thereof
CIBA GEIGY CORP24 citations82
US4191682AMar 4, 1980
Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions
CIBA GEIGY CORP25 citations82
US4051102ASep 27, 1977
Bicyclic hindered amino acids, metal salts thereof and stabilized compositions
CIBA GEIGY CORP21 citations82
US4007157AFeb 8, 1977
Substituted piperazines and polymeric compositions stabilized thereby
CIBA GEIGY CORP28 citations82
US3991012ANov 9, 1976
Compositions stabilized with bicyclic hindered amines
CIBA GEIGY CORP26 citations82
US3936456AFeb 3, 1976
Substituted piperazine dione oxyls and hydroxides and polymer compositions stabilized thereby
CIBA GEIGY CORP20 citations82
US4208522AJun 17, 1980
Substituted piperazine diones
CIBA GEIGY CORP7 citations74
US4101509AJul 18, 1978
Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions
CIBA GEIGY CORP8 citations74
US4069199AJan 17, 1978
Metal salts of hindered piperidine carboxylic acids and stabilized compositions
CIBA GEIGY CORP12 citations74
US4069196AJan 17, 1978
Piperidyl esters of higher di-tri-, and polybasic aliphatic carboxylic acids as stabilizers for polymeric materials
CIBA GEIGY CORP9 citations74
US4067848AJan 10, 1978
Alkyl alkanoate derivatives of substituted piperazine-diones and polymer compositions stabilized thereby
CIBA GEIGY CORP10 citations74
US4056507ANov 1, 1977
Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions
CIBA GEIGY CORP19 citations74
US4051137ASep 27, 1977
Substituted piperazine diones and polymeric compositions stabilized thereby
CIBA GEIGY CORP6 citations74
US4031095AJun 21, 1977
Hindered piperidine carboxylic acids, metals salts thereof and stabilized compositions
CIBA GEIGY CORP12 citations74
US4001181AJan 4, 1977
Hindered piperidine carboxamide acids, metal salts thereof, and stabilized compositions
CIBA GEIGY CORP15 citations74
US3992351ANov 16, 1976
Alkyl alkanoate derivatives of substituted piperazines and polymer compositions stabilized thereby
CIBA GEIGY CORP7 citations74
US3969316AJul 13, 1976
3,5-Dialkyl-4-hydroxyphenylalkyl substituted piperazine diones and polymeric compositions stabilized thereby
CIBA GEIGY CORP6 citations74
US3968078AJul 6, 1976
Alkyl alkanoate derivatives of substituted piperazine-diones and polymer compositions stabilized thereby
CIBA GEIGY CORP9 citations74
US3939163AFeb 17, 1976
Metal salts of hindered piperidine carboxylic acids and stabilized compositions
CIBA GEIGY CORP7 citations74
US4219464AAug 26, 1980
Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions
CIBA GEIGY CORP3 citations63
US4139520AFeb 13, 1979
Compositions stabilized with hindered piperidine carboxylic acids or metal salts thereof
CIBA GEIGY CORP3 citations63
US4125517ANov 14, 1978
Substituted piperazine diones and polymeric compositions stabilized thereby
CIBA GEIGY CORP2 citations63
US4116933ASep 26, 1978
Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions
CIBA GEIGY CORP6 citations63
US4087406AMay 2, 1978
Metal salts of hindered piperidine carboxylic acids and stabilized compositions
CIBA GEIGY CORP2 citations63
US4070335AJan 24, 1978
3,5-Dialkyl-4-hydroxyphenylalkyl substituted piperazine diones and polymeric compositions stabilized thereby
CIBA GEIGY CORP2 citations63
US4007156AFeb 8, 1977
Acylated derivatives of substituted piperazines and polymeric compositions stabilized thereby
CIBA GEIGY CORP5 citations63
US4203890AMay 20, 1980
Hindered piperidine carboxylic acids, metal salts thereof and stabilized compositions
CIBA GEIGY CORP2 citations54
FERRO CORP
4 patentsUS4804717AFeb 14, 1989
Polymeric hindered amine light stabilizers
FERRO CORP23 citations81
US4404302ASep 13, 1983
Acylated hindered hexahydropyrimidines and their use as light stabilizing agents
FERRO CORP24 citations81
US4895901AJan 23, 1990
Polymetic hindered amine light stabilizers
FERRO CORP12 citations72
US4448969AMay 15, 1984
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
FERRO CORP13 citations72
OMG AMERICAS INC
3 patentsUS6689893B2Feb 10, 2004
Shelf stable haze free liquids of overbased alkaline earth metal salts
OMG AMERICAS INC15 citations82
US7163912B2Jan 16, 2007
Lubricant compositions containing an overbased amorphous alkaline earth metal salt as a metal protectant
OMG AMERICAS INC3 citations61
US6639090B2Oct 28, 2003
Powdered overbased amorphous alkaline earth metal salts and processes for making
OMG AMERICAS INC5 citations61