Inventor · disambiguated record
Guenter Hansen
Also filed as: HANSEN GUENTER
66 granted patents·485 citations·filing 1973–1993
99Inventor score
Top patents by PatentIndex Score
66 records- 0196US4843153AAzo dyes containing thienothiophene radicals as radicals of the diazo componentBASF AG·Filed 1987·Granted Jun 27, 1989·58 cites·6 claims
- 0293US4473376ADye mixtures of azo compounds soluble in organic solventsBASF AG·Filed 1979·Granted Sep 25, 1984·20 cites·1 claims
- 0390US4479906ATrisazo dyeBASF AG·Filed 1973·Granted Oct 30, 1984·16 cites·1 claims
- 0488US4315756AOil-soluble azo dye with N-substituted β-naphthylamine as coupling componentBASF AG·Filed 1974·Granted Feb 16, 1982·15 cites·13 claims
- 0581US4994564AAzo dyes with a diazo component of the 3-amino thiophene series and a coupling component of the pyridine, pyridone or pyrazole seriesBASF AG·Filed 1988·Granted Feb 19, 1991·16 cites·4 claims
- 0681US4119621AAzo dyes having a benzoisothiazolyl diazo componentBASF AG·Filed 1976·Granted Oct 10, 1978·11 cites·8 claims
- 0779US4619992A3-(β-aminoethyl)-4-cyano-isothiazolylazo dyesBASF AG·Filed 1985·Granted Oct 28, 1986·14 cites·4 claims
- 0876US5182372AAniline-based oil-soluble azo dyesBASF AG·Filed 1990·Granted Jan 26, 1993·27 cites·3 claims
- 0976US4465628AAzo dyes comprising a heterocyclic diazo componentBASF AG·Filed 1979·Granted Aug 14, 1984·8 cites·5 claims
- 1076US4041025AP-Aminoazo disperse dyesBASF AG·Filed 1975·Granted Aug 9, 1977·9 cites·9 claims
- 1175US5283326ADyes containing thiophene radicalsSANDOZ AG·Filed 1992·Granted Feb 1, 1994·14 cites·14 claims
- 1275US5066791APyridoneazo dyes with an m-aminobenzoic ester as the diazo componentBASF AG·Filed 1990·Granted Nov 19, 1991·12 cites·2 claims
- 1375US4764600AIsothiazolylazo dyes having aminophenyl and aminonaphthyl componentsBASF AG·Filed 1983·Granted Aug 16, 1988·8 cites·1 claims
- 1473US4668775Aα-methine substituted thiophene monoazo dyeBASF AG·Filed 1985·Granted May 26, 1987·11 cites·9 claims
- 1570US4250090A2-Amino-5-arylazoarylazothiazole compoundsBASF AG·Filed 1979·Granted Feb 10, 1981·7 cites·5 claims
- 1667US4837269A2-aminothiophene radical substituted by an electron withdrawing groupBASF AG·Filed 1987·Granted Jun 6, 1989·8 cites·24 claims
- 1767US4537597ANavy blue mixtures of disperse mono-azo dyes for cellulose acetateBASF AG·Filed 1984·Granted Aug 27, 1985·7 cites·5 claims
- 1865US5132412AThiazoleazo dyes having a diazo component from the isothiazole or thiadiazole seriesBASF AG·Filed 1989·Granted Jul 21, 1992·7 cites·4 claims
- 1965US4976744APreparation of concentrated solutions of cationic dyes as mono-carboxylates in glycol etherBASF AG·Filed 1989·Granted Dec 11, 1990·7 cites·4 claims
- 2063US5151506APhenoneazo dyesBASF AG·Filed 1990·Granted Sep 29, 1992·7 cites·4 claims
- 2163US4751288AAzo dyes containing 2-amino-3-cyano-5-formylthiophene derivatives as diazo components and substituted aniline compounds as coupling componentsBASF AG·Filed 1986·Granted Jun 14, 1988·7 cites·2 claims
- 2263US4221711ABrown to violet substituted phenyl-substituted anilino azo dyesBASF AG·Filed 1978·Granted Sep 9, 1980·5 cites·1 claims
- 2363US4083684AUniformly dyed water-swellable cellulosic fibersBASF AG·Filed 1977·Granted Apr 11, 1978·6 cites·18 claims
- 2461US5104979APolyazo dyes with diazo components of the aminophenol and the amino diphenyl-sulfide, -sulfoxide or -sulfone seriesBASF AG·Filed 1990·Granted Apr 14, 1992·7 cites·2 claims
- 2560US4329148ADye mixtures, and their use in dyeing polyestersBASF AG·Filed 1981·Granted May 11, 1982·7 cites·3 claims
- 2660US4210414ADye mixtures for coloring mineral oil productsBASF AG·Filed 1978·Granted Jul 1, 1980·14 cites·3 claims
- 2759US4547566ACopper, cobalt, nickel and iron complexes of disazo dyesBASF AG·Filed 1983·Granted Oct 15, 1985·4 cites·1 claims
- 2858US4496480AIsothiazolazo dyes having coupling components which are free from unsaturated aliphatic radicalsBASF AG·Filed 1983·Granted Jan 29, 1985·5 cites·9 claims
- 2957US4960874AIsothiazolylazo dyes having aminophenyl and aminonaphthyl componentsBASF AG·Filed 1988·Granted Oct 2, 1990·5 cites·5 claims
- 3056US5352774ADyes containing thiophene radicalsSANDOZ AG·Filed 1993·Granted Oct 4, 1994·5 cites·17 claims
- 3156US5112362ANavy dye mixtures of azo disperse dyes for polyesterBASF AG·Filed 1991·Granted May 12, 1992·5 cites·4 claims
- 3255US4405330ANavy disperse dye mixturesBASF AG·Filed 1982·Granted Sep 20, 1983·14 cites·2 claims
- 3352US5247071APreparation of acetalized azo dyesBASF AG·Filed 1992·Granted Sep 21, 1993·4 cites·4 claims
- 3452US4638055AIron, copper and chromium complexes of disazo dyesBASF AG·Filed 1985·Granted Jan 20, 1987·3 cites·4 claims
- 3552US4563520AMetal complexes of dis- or trisazo compounds containing a middle component twice substituted by hydroxy and/or aminoBASF AG·Filed 1982·Granted Jan 7, 1986·4 cites·6 claims
- 3652US4491543ADis-, tris-, and tetrakisazo compounds containing resorcinol, sulfonylamino, and two or three sulfonic acid groupsBASF AG·Filed 1982·Granted Jan 1, 1985·4 cites·14 claims
- 3752US4321055ANavy dye mixtures and their use in dyeing polyestersBASF AG·Filed 1981·Granted Mar 23, 1982·14 cites·3 claims
- 3851US4960873A3-pyridylisothiazoleazo compounds useful as disperse dyesBASF AG·Filed 1989·Granted Oct 2, 1990·4 cites·4 claims
- 3948US5073634ATetrachloroferrates of basic dyesBASF AG·Filed 1990·Granted Dec 17, 1991·3 cites·1 claims
- 4048US4820809AHeterocyclic azo dyesBASF AG·Filed 1988·Granted Apr 11, 1989·3 cites·8 claims
- 4148US4340537AMonoazo dyes of the thiazole series having a heterocyclic substituent in the 4-positionBASF AG·Filed 1980·Granted Jul 20, 1982·3 cites·3 claims
- 4247US4929720AIsothiazoleazo hydroxypyridone dyesBASF AG·Filed 1988·Granted May 29, 1990·3 cites·4 claims
- 4347US4483795ASubstituted phenyl disazo dyes containing a 2-amino-substituted thiazole radicalBASF AG·Filed 1982·Granted Nov 20, 1984·2 cites·7 claims
- 4447US4327019AAcid azo dyes from a 3-amino-benzisothiazole-[2,1]-5-sulfonic acid diazo componentBASF AG·Filed 1978·Granted Apr 27, 1982·2 cites·7 claims
- 4546US5270456AAzo dyes with A2-aminothiophene dye azo component and a coupling component and coupling component of the diphenylamine seriesBASF AG·Filed 1991·Granted Dec 14, 1993·3 cites·4 claims
- 4646US4908437AThien-2-one compounds with an alkylidene or imino group in the 5-position of the ringBASF AG·Filed 1988·Granted Mar 13, 1990·3 cites·4 claims
- 4745US4285860ATrisazo or tetrakisazo dyes containing a heterocyclic groupBASF AG·Filed 1980·Granted Aug 25, 1981·5 cites·2 claims
- 4843US4378969AFluid formulations of oxidation dyes for mineral oil products, fats and waxesBASF AG·Filed 1981·Granted Apr 5, 1983·3 cites·7 claims
- 4942US5264560APreparation of quaternized azo dyesBASF AG·Filed 1992·Granted Nov 23, 1993·2 cites·2 claims
- 5042US4948702APhotosensitive recording elementBASF AG·Filed 1989·Granted Aug 14, 1990·11 cites·13 claims
Showing the top 50 of 66 patent records by PatentIndex Score.
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