Inventor
LOEFFLER HERMANN
DE31 patents
⚠️ This page may combine multiple inventors who share the name “LOEFFLER HERMANN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BASF AG
29 patentsUS5200511AApr 6, 1993
Cholorotriazine dyes with two azo chromophores exhibiting further reactive groups
BASF AG29 citations92
US4855413AAug 8, 1989
Heterocyclic azo dyes containing cyanothiophene derivatives as diazo components and diaminopyridines as coupling components
BASF AG25 citations92
US4668774AMay 26, 1987
2-ethylhexylamine salts of anionic monoazo dyes
BASF AG35 citations92
US6011140AJan 4, 2000
Reactive azo dyes with an aminonaphthalenesulfonic acid coupling component and intermediates therefor
BASF AG26 citations91
US5403363AApr 4, 1995
Dye mixtures containing azo dyes having a coupling component from the diaminopyridine series
BASF AG30 citations91
US4939118AJul 3, 1990
Transfer of azo dyes having a pyridine coupling component
BASF AG24 citations91
US4855412AAug 8, 1989
Diaminopyridine azo dyes having acyloxy radicals substituted on the diaminopyridine
BASF AG22 citations82
US4774324ASep 27, 1988
Isothiazolylazo dyes
BASF AG20 citations82
US5066791ANov 19, 1991
Pyridoneazo dyes with an m-aminobenzoic ester as the diazo component
BASF AG12 citations74
US4965345AOct 23, 1990
Solvent azo dyes having carboxylic acid functions
BASF AG7 citations74
US5929217AJul 27, 1999
Reactive dyes with a benzo-fused heterocycle as anchor
BASF AG7 citations73
US5175262ADec 29, 1992
Doubled reactive dyes
BASF AG7 citations73
US4380452AApr 19, 1983
Dyeing and printing of cellulose-containing textile material
BASF AG14 citations73
US4305718ADec 15, 1981
Dyeing and printing of cellulose-containing textile material
BASF AG14 citations73
US5789557AAug 4, 1998
Reactive azo dyes with a coupler of the aminonaphthalene series
BASF AG15 citations72
US5149789ASep 22, 1992
Reactive dyes with two or three nitrogen-containing haloheterocycles as reactive system
BASF AG13 citations72
US5629409AMay 13, 1997
Reactive disazo dyes having two cyanuric chloride mechanisms
BASF AG4 citations63
US5623060AApr 22, 1997
Dye mixture containing at least four diazo dyes having the same color with a diaminopyridine coupling component
BASF AG3 citations63
US5536840AJul 16, 1996
Process of preparing diaminopyridine compounds
BASF AG3 citations63
US5330543AJul 19, 1994
Thiopheneazo dyes with a coupling component of the diaminopyridine series
BASF AG2 citations63
US5223607AJun 29, 1993
Reactive azo dyes with at lest two reactive halotriazine groups
BASF AG4 citations63
US4988802AJan 29, 1991
Reactive dyes with three reactive groups
BASF AG5 citations63
US4965346AOct 23, 1990
Heterocyclic azo dyes containing cyanothiophene derivatives as diazo components and diaminopyridines as coupling components
BASF AG2 citations63
US4424154AJan 3, 1984
Azo dye having a 3-cyano- or 3-carbamoyl-2,6-diaminopyridine coupling component
BASF AG2 citations63
US4419290ADec 6, 1983
Diazo dyes having a coupler component attached to a sulfaphenyl-azo-phenyl-azo-radical
BASF AG4 citations63
US4276045AJun 30, 1981
Dyeing and printing of cellulosic textile material
BASF AG4 citations62
US5484460AJan 16, 1996
Dye mixtures containing azo dyes having a coupling component from the diaminopyridine series
BASF AG5 citations61
US5245020ASep 14, 1993
Reactive dyes with two or three nitrogen-containing haloheterocycles as reactive system
BASF AG6 citations61
US5216137AJun 1, 1993
Doubled phenyl azo naphthalene reactive dyes having four halotriazine reactive groups and a phenylene diamine series bridge member
BASF AG1 citations52