Inventor
GRYCHTOL KLAUS
DE22 patents
Patents
22 patentsUS4256458AMar 17, 1981
Methine dyes for paper and amonically-modified fibers
BASF AG41 citations92
US4353833AOct 12, 1982
Cationic dyes
BASF AG21 citations81
US4223144ASep 16, 1980
Triphenylmethane dyes
BASF AG24 citations81
US3963747AJun 15, 1976
Basic arylmercaptonaphtholactam dyes
BASF AG9 citations74
US5529872AJun 25, 1996
Electrostatic toners containing a metal complex dye as charge stabilizer
BASF AG8 citations73
US4663441AMay 5, 1987
Asymmetric 1:2 chrome complex dye of a phenylazosulphonaphtholamine and a naphtholazosulphonaphthol
BASF AG9 citations73
US4323362AApr 6, 1982
Dyed paper
BASF AG10 citations73
US4280964AJul 28, 1981
Basic dyes
BASF AG11 citations73
US3971821AJul 27, 1976
Production of aminobenzaldehydes
BASF AG9 citations73
US3932446AJan 13, 1976
Quaternized 6-diethylamino-2-[benzimidazolyl-(2)]benzofuran
BASF AG8 citations73
US4560744ADec 24, 1985
Azo dye 2:1-chromium complexes
BASF AG4 citations63
US4537955AAug 27, 1985
Unsymmetrical 1:2 chromium complex of a monoazo dyestuff and a disazo dyestuff which is non-fiber reactive and contains no sulfonamido or amino groups
BASF AG2 citations63
US4489002ADec 18, 1984
Azo compound and an azomethine compound and having a tertiary N-dative bond
BASF AG5 citations63
US4424153AJan 3, 1984
1:2 Chromium complex dyes containing sulfonic acid groups
BASF AG5 citations63
US4264494AApr 28, 1981
Chromium complex dyestuffs for natural polyamides and synthetic nylons
BASF AG5 citations63
US4397651AAug 9, 1983
Polymeric dyes derived from bis-reactive methylene compounds and aromatic di-aldehydes for paper
BASF AG5 citations62
US4212644AJul 15, 1980
Dyed paper
BASF AG6 citations62
US4597912AJul 1, 1986
Basic colorants
BASF AG3 citations60
US4804386AFeb 14, 1989
Chromium complex dye for polyamides or leather
BASF AG1 citations52
US4474695AOct 2, 1984
Complex dye mixture containing at least two cobalt 1:2 complexes of azo dyes
BASF AG0 citations51
US4720568AJan 19, 1988
Basic colorants
BASF AG1 citations50
US4979962ADec 25, 1990
Dyeing of natural or synthetic polyamides
BASF AG1 citations42