Inventor · disambiguated record
Ivan Orban
Also filed as: ORBAN IVAN
19 granted patents·247 citations·filing 1973–1998
95Inventor score
Top patents by PatentIndex Score
19 records- 0193US4594444AProcess for the preparation of sterically hindered hydroxyphenylcarboxylic acid estersCIBA GEIGY CORP·Filed 1984·Granted Jun 10, 1986·41 cites·7 claims
- 0291US4716244AProcess for the preparation of sterically hindered hydroxyphenylcarboxylic acid estersCIBA GEIGY CORP·Filed 1986·Granted Dec 29, 1987·34 cites·6 claims
- 0391US4492791AProcess for the preparation of polyaminotriazinesCIBA GEIGY CORP·Filed 1983·Granted Jan 8, 1985·29 cites·8 claims
- 0487US4536593AProcess for the preparation of sterically hindered hydroxphenylcarboxylic acid estersCIBA GEIGY CORP·Filed 1983·Granted Aug 20, 1985·24 cites·8 claims
- 0584US4683326ASolvent-free crystallization of pentaerythritol tetrakis-[3-(3,5-di-tert-butyl-4-hydroxyphenyl)propionate] and the novel alpha-crystalline form thereofCIBA GEIGY CORP·Filed 1986·Granted Jul 28, 1987·22 cites·11 claims
- 0681US3959295AProcess for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidineCIBA GEIGY CORP·Filed 1974·Granted May 25, 1976·11 cites·53 claims
- 0774US5726310AProcess for the preparation of 2-(2,4-dihydroxylphenyl)-4,6-bis(2,4-dimehylphenyl)-s-triazineCIBA SC HOLDING AG·Filed 1996·Granted Mar 10, 1998·20 cites·13 claims
- 0871US4275211AProcess for preparing 2,2,6,6-tetraalkyl-4-oxopiperidinesCIBA GEIGY CORP·Filed 1979·Granted Jun 23, 1981·6 cites·8 claims
- 0970US5130429AProcess for the methylation of triazine compounds containing 2,2,6,6-tetramethylpiperidine groupsCIBA GEIGY CORP·Filed 1991·Granted Jul 14, 1992·12 cites·15 claims
- 1070US3953459AProcess for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidineCIBA GEIGY CORP·Filed 1974·Granted Apr 27, 1976·7 cites·37 claims
- 1165US5436322AAzo coupling of 2-nitroanilines with 2,4,-disbustituted phenolsCIBA GEIGY CORP·Filed 1994·Granted Jul 25, 1995·8 cites·10 claims
- 1264US3960875AProcess for the preparation of 2,2,6,6-tetramethyl-4-oxopiperidineCIBA GEIGY CORP·Filed 1974·Granted Jun 1, 1976·5 cites·19 claims
- 1362US5616787AProcess for the preparation of alkylated aromatic carboxylic acids and acyl halidesCIBA GEIGY CORP·Filed 1995·Granted Apr 1, 1997·8 cites·19 claims
- 1454US3943139AProcess for the manufacture of triacetone-amineCIBA GEIGY CORP·Filed 1973·Granted Mar 9, 1976·3 cites·12 claims
- 1551US5688969AProcess for the preparation of thiophene-2-5-dicarboxylic acid and the dichloride thereofCIBA SC HOLDING AG·Filed 1996·Granted Nov 18, 1997·4 cites·7 claims
- 1646US4507463AProcess for producing polyesters from aliphatic dicarboxylic acids and polyalkylpiperidyldiolsCIBA GEIGY CORP·Filed 1984·Granted Mar 26, 1985·7 cites·6 claims
- 1742US4699939AOrtho cyclohexyl, para hydroxy aralkanoic acid esters and amide antioxidantsCIBA GEIGY CORP·Filed 1986·Granted Oct 13, 1987·6 cites·16 claims
- 1830US6492440B1Block oligomers containing 1-hydrocarbyloxy-2,2,6,6-tetramethyl-4-piperidyl groups as stabilizers for organic materialsCIBA SC HOLDING AG·Filed 1998·Granted Dec 10, 2002·0 cites·30 claims
- 1930US6403680B1Block oligomers containing 1-hydrocarbyloxy-2,2,6,6-tetramethyl-4-piperidyl groups as stabilizers for organic materialsCIBA SC HOLDING AG·Filed 1998·Granted Jun 11, 2002·0 cites·31 claims
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