Inventor · disambiguated record
Roland A. E. Winter
Also filed as: LEPPARD DAVID · WINTER ROLAND A E
69 granted patents·1 pending application·2,874 citations·filing 1973–2003
99Inventor score
Files withCIBA GEIGY CORP59CIBA SC HOLDING AG7NALCO EXXON ENERGY CHEM LP2CIBA SPECIALTY CHEMCIALS CORP1
Top patents by PatentIndex Score
70 records- 0199US5574166ACrystalline form of 2-(2-hydroxy-3-α-cumyl-5-tert-octylphenyl)-2H-benzotriazoleCIBA GEIGY CORP·Filed 1995·Granted Nov 12, 1996·95 cites·5 claims
- 0299US5204473AO-substituted N-hydroxy hindered amine stabilizersCIBA GEIGY CORP·Filed 1992·Granted Apr 20, 1993·211 cites·36 claims
- 0399US4278589A2-[2-Hydroxy-3,5-di-(α,α-dimethylbenzyl)phenyl]-2H-benzotriazole and stabilized compositionsCIBA GEIGY CORP·Filed 1979·Granted Jul 14, 1981·114 cites·10 claims
- 0498US5240975ALiquid substituted 2H-benzotriazole mixtures, stabilized compositionsCIBA GEIGY CORP·Filed 1991·Granted Aug 31, 1993·117 cites·6 claims
- 0598US4383863A2-[2-Hydroxy-3,5-di-tert-octylphenyl]-2H-benzotriazole in stabilized photographic compositionsCIBA GEIGY CORP·Filed 1981·Granted May 17, 1983·76 cites·9 claims
- 0698US4315848A2-[2-Hydroxy-3,5-di-(α,α-dimethylbenzyl)-phenyl]-2H-benzotriazole and stabilized compositionsCIBA GEIGY CORP·Filed 1980·Granted Feb 16, 1982·122 cites·14 claims
- 0798US4275004AHigh caustic coupling process for preparing substituted 2-nitro-2'-hydroxyazobenzenesCIBA GEIGY CORP·Filed 1979·Granted Jun 23, 1981·72 cites·11 claims
- 0898US4226763A2-[2-Hydroxy-3,5-di-(.alpha.,α-dimethylbenzyl)-phenyl]-2H-benzotriazole and stabilized compositionsCIBA GEIGY CORP·Filed 1978·Granted Oct 7, 1980·102 cites·10 claims
- 0997US5607987A2-(2-hydroxy-3-α cumyl-5-tert nonyl or dodecyl phenyl)-2H- Benzotriazole UV AbsorbersCIBA GEIGY CORP·Filed 1996·Granted Mar 4, 1997·78 cites·1 claims
- 1097US5112890AStabilization of acid catalyzed thermoset resinsCIBA GEIGY CORP·Filed 1988·Granted May 12, 1992·113 cites·27 claims
- 1197US4675352ALiquid 2-(2-hydroxy-3-higher branched alkyl-5-methyl-phenyl)-2H-benzotriazole mixtures, stabilized compositions and processes for preparing liquid mixturesCIBA GEIGY CORP·Filed 1985·Granted Jun 23, 1987·92 cites·16 claims
- 1297US4665185AProcess for preparing nitroxyls of sterically hindered aminesCIBA GEIGY CORP·Filed 1985·Granted May 12, 1987·80 cites·8 claims
- 1396US5563242AElectro coat/base coat/clear coat finishes stabilized with soluble and thermally stable benzotriazole UV absorbersCIBA GEIGY CORP·Filed 1995·Granted Oct 8, 1996·76 cites·13 claims
- 1496US5554760A2-(2-hydroxy-3-α-cumyl-5-nonylor 5-dodecylphenyl)-2H-benzotriazoleCIBA GEIGY CORP·Filed 1995·Granted Sep 10, 1996·66 cites·2 claims
- 1596US5436349ACompositions stabilized with 5-sulfonyl-substituted benotriazole UV-absorbersCIBA GEIGY CORP·Filed 1993·Granted Jul 25, 1995·82 cites·23 claims
- 1696US5280124A5-sulfonyl-substituted benzotriazole UV-absorbersCIBA GEIGY CORP·Filed 1992·Granted Jan 18, 1994·101 cites·4 claims
- 1796US5254760AInhibiting polymerization of vinyl aromatic monomersCIBA GEIGY CORP·Filed 1992·Granted Oct 19, 1993·106 cites·23 claims
- 1896US4278590A2-[2-Hydroxy-3,5-di-tert-octylphenyl]-2H-Benzotriazole and stabilized compositionsCIBA GEIGY CORP·Filed 1979·Granted Jul 14, 1981·44 cites·13 claims
- 1995US5583247A7-substituted quinone methides as inhibitors for unsaturated monomersCIBA GEIGY CORP·Filed 1995·Granted Dec 10, 1996·69 cites·11 claims
- 2095US5516914ACompositions stabilized with 5-thio-substituted benzotriazole UV-absorbersCIBA GEIGY CORP·Filed 1993·Granted May 14, 1996·84 cites·27 claims
- 2195US5278314A5-thio-substituted benzotriazole UV-absorbersCIBA GEIGY CORP·Filed 1992·Granted Jan 11, 1994·91 cites·4 claims
- 2295US4347180AHigh caustic coupling process for preparing substituted 2-nitro-2'-hydroxyazobenzenesCIBA GEIGY CORP·Filed 1981·Granted Aug 31, 1982·76 cites·11 claims
- 2394US5736597AStabilized organic materialCIBA GEIGY CORP·Filed 1993·Granted Apr 7, 1998·55 cites·19 claims
- 2494US4283327A2-(2-Hydroxy-3,5-di-tert-octylphenyl)-2H-benzotriazole stabilized compositionsCIBA GEIGY CORP·Filed 1979·Granted Aug 11, 1981·29 cites·6 claims
- 2593US5616774AInhibition of unsaturated monomers with 7-aryl quinone methidesCIBA GEIGY CORP·Filed 1995·Granted Apr 1, 1997·62 cites·26 claims
- 2692US5877344APolymerization inhibition of acrylates using blends of nitroxidesCIBA SC HOLDING AG·Filed 1997·Granted Mar 2, 1999·48 cites·42 claims
- 2792US5750765A7-substituted quinone methides as inhibitors for unsaturated monomersCIBA SC HOLDING AG·Filed 1996·Granted May 12, 1998·41 cites·1 claims
- 2892US5545782AMethod for inhibiting premature polymerization of vinyl aromatic monomersCIBA GEIGY CORP·Filed 1995·Granted Aug 13, 1996·43 cites·11 claims
- 2991US5670692A7-substituted quinone methides as inhibitors for unsaturated monomersCIBA GEIGY CORP·Filed 1996·Granted Sep 23, 1997·39 cites·8 claims
- 3088US5844025A1,2-Bis-adducts of stable nitroxides with substituted ethylenes and stabilized compositionsCIBA SC HOLDING AG·Filed 1996·Granted Dec 1, 1998·30 cites·4 claims
- 3188US4703073AAlkylated N,N-dibenzylhydroxylamines and polyolefin compositions stabilized therewithCIBA GEIGY CORP·Filed 1986·Granted Oct 27, 1987·38 cites·9 claims
- 3287US4973701ALiquid substituted 2H-benzotriazole mixtures, stabilized compositions and processes for preparing the liquid mixturesCIBA GEIGY CORP·Filed 1988·Granted Nov 27, 1990·25 cites·23 claims
- 3386US4587346ALiquid 2-(2-hydroxy-3-higher branched alkyl-5-methyl-phenyl)-2H-benzotriazole mixtures, stabilized compositions and processes for preparing liquid mixturesCIBA GEIGY CORP·Filed 1985·Granted May 6, 1986·22 cites·22 claims
- 3485US5545786AMethod for inhibiting premature polymerization of vinyl aromatic monomersCIBA GEIGY CORP·Filed 1995·Granted Aug 13, 1996·41 cites·15 claims
- 3582US5942626AProcess for making 5-thio-substituted benzotriazole UV absorbersCIBA SC HOLDING AG·Filed 1996·Granted Aug 24, 1999·36 cites·13 claims
- 3673US4496757AUltraviolet-absorbing stabilizers substituted an aliphatic hydroxyl groupCIBA GEIGY CORP·Filed 1982·Granted Jan 29, 1985·18 cites·5 claims
- 3772US6187919B1Stabilized organic materialCIBA SC HOLDING AG·Filed 1996·Granted Feb 13, 2001·16 cites·7 claims
- 3872US6117276AInhibiting polymerization of vinyl aromatic monomersNALCO EXXON ENERGY CHEM LP·Filed 1998·Granted Sep 12, 2000·13 cites·7 claims
- 3972US4760148A5-aralkyl substituted 2H-benzotriazoles and stabilized compositionsCIBA GEIGY CORP·Filed 1985·Granted Jul 26, 1988·19 cites·21 claims
- 4072US4544691ACompositions containing ultraviolet-absorbing stabilizing substituted by an aliphatic hydroxyl groupCIBA GEIGY CORP·Filed 1983·Granted Oct 1, 1985·17 cites·6 claims
- 4172US4447511A2-[2-Hydroxy-3,5-di-tert-octylphenyl]-2H-benzotriazole in stabilized photographic compositionsCIBA GEIGY CORP·Filed 1983·Granted May 8, 1984·7 cites·8 claims
- 4267US5204422APeroxide free radical initiators containing hindered amine moieties with low basicityCIBA GEIGY CORP·Filed 1992·Granted Apr 20, 1993·10 cites·8 claims
- 4366US5051511APeroxide free radical initiators containing hindered amine moieties with low basicityCIBA GEIGY CORP·Filed 1990·Granted Sep 24, 1991·10 cites·6 claims
- 4466US4413096Aα-Olefin copolymers containing pendant hindered amine groupsCIBA GEIGY CORP·Filed 1982·Granted Nov 1, 1983·23 cites·20 claims
- 4563US5300647AO-carbonyl N-hydroxy hindered amine stabilizersCIBA GEIGY CORP·Filed 1993·Granted Apr 5, 1994·13 cites·9 claims
- 4663US5140081APeroxide free radical initiators containing hindered amine moieties with low basicityCIBA GEIGY CORP·Filed 1991·Granted Aug 18, 1992·8 cites·11 claims
- 4763US3979350Aα,β-UNSATURATED SCHIFF-BASE CHAIN EXTENSION REACTIONS FOR POLYIMIDES AND POLYAMIDE-IMIDESCIBA GEIGY CORP·Filed 1973·Granted Sep 7, 1976·13 cites·11 claims
- 4862US5095062AStabilized compositions containing liquid substituted 2H-benzotriazole mixturesCIBA GEIGY CORP·Filed 1990·Granted Mar 10, 1992·9 cites·7 claims
- 4962US4618638ACompositions containing alpha-cyanocinnamate ultraviolet-absorbing stabilizers substituted by an aliphatic hydroxyl groupCIBA GEIGY CORP·Filed 1984·Granted Oct 21, 1986·11 cites·4 claims
- 5061US4904712A5-Higher alkyl substituted-2H-benzotriazoles in stabilized compositionsCIBA GEIGY CORP·Filed 1987·Granted Feb 27, 1990·6 cites·5 claims
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