Inventor · disambiguated record
Klaus Grychtol
Also filed as: GRYCHTOL KLAUS
22 granted patents·188 citations·filing 1973–1993
95Inventor score
Files withBASF AG22
Top patents by PatentIndex Score
22 records- 0196US4256458AMethine dyes for paper and amonically-modified fibersBASF AG·Filed 1979·Granted Mar 17, 1981·41 cites·2 claims
- 0292US4223144ATriphenylmethane dyesBASF AG·Filed 1978·Granted Sep 16, 1980·24 cites·8 claims
- 0388US4353833ACationic dyesBASF AG·Filed 1980·Granted Oct 12, 1982·21 cites·1 claims
- 0482US4280964ABasic dyesBASF AG·Filed 1979·Granted Jul 28, 1981·11 cites·2 claims
- 0578US3963747ABasic arylmercaptonaphtholactam dyesBASF AG·Filed 1974·Granted Jun 15, 1976·9 cites·5 claims
- 0675US4323362ADyed paperBASF AG·Filed 1981·Granted Apr 6, 1982·10 cites·2 claims
- 0774US3971821AProduction of aminobenzaldehydesBASF AG·Filed 1974·Granted Jul 27, 1976·9 cites·7 claims
- 0872US4663441AAsymmetric 1:2 chrome complex dye of a phenylazosulphonaphtholamine and a naphtholazosulphonaphtholBASF AG·Filed 1985·Granted May 5, 1987·9 cites·1 claims
- 0966US5529872AElectrostatic toners containing a metal complex dye as charge stabilizerBASF AG·Filed 1993·Granted Jun 25, 1996·8 cites·5 claims
- 1065US4212644ADyed paperBASF AG·Filed 1978·Granted Jul 15, 1980·6 cites·11 claims
- 1160US4264494AChromium complex dyestuffs for natural polyamides and synthetic nylonsBASF AG·Filed 1978·Granted Apr 28, 1981·5 cites·9 claims
- 1259US4424153A1:2 Chromium complex dyes containing sulfonic acid groupsBASF AG·Filed 1981·Granted Jan 3, 1984·5 cites·3 claims
- 1357US4489002AAzo compound and an azomethine compound and having a tertiary N-dative bondBASF AG·Filed 1982·Granted Dec 18, 1984·5 cites·4 claims
- 1453US4560744AAzo dye 2:1-chromium complexesBASF AG·Filed 1981·Granted Dec 24, 1985·4 cites·2 claims
- 1548US3932446AQuaternized 6-diethylamino-2-[benzimidazolyl-(2)]benzofuranBASF AG·Filed 1973·Granted Jan 13, 1976·8 cites·2 claims
- 1647US4597912ABasic colorantsBASF AG·Filed 1985·Granted Jul 1, 1986·3 cites·3 claims
- 1744US4537955AUnsymmetrical 1:2 chromium complex of a monoazo dyestuff and a disazo dyestuff which is non-fiber reactive and contains no sulfonamido or amino groupsBASF AG·Filed 1983·Granted Aug 27, 1985·2 cites·2 claims
- 1838US4804386AChromium complex dye for polyamides or leatherBASF AG·Filed 1988·Granted Feb 14, 1989·1 cites·9 claims
- 1936US4397651APolymeric dyes derived from bis-reactive methylene compounds and aromatic di-aldehydes for paperBASF AG·Filed 1981·Granted Aug 9, 1983·5 cites·2 claims
- 2032US4474695AComplex dye mixture containing at least two cobalt 1:2 complexes of azo dyesBASF AG·Filed 1981·Granted Oct 2, 1984·0 cites·7 claims
- 2128US4720568ABasic colorantsBASF AG·Filed 1986·Granted Jan 19, 1988·1 cites·3 claims
- 2224US4979962ADyeing of natural or synthetic polyamidesBASF AG·Filed 1989·Granted Dec 25, 1990·1 cites·5 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →