Inventor
BIEN HANS-SAMUEL
DE26 patents
Patents
26 patentsUS4115378ASep 19, 1978
Water soluble reactive axodyestuffs containing a fluorotriazinyl group attached via a nitrogen bridge to the dyestuff molecule
BAYER AG29 citations82
US4007164AFeb 8, 1977
Azo dyestuffs containing 6-fluoro-pyrimidinyl 4-reactive group
BAYER AG26 citations82
US4206306AJun 3, 1980
Reactive phthalocyanine dyestuffs containing a fluorotriazinyl group attached via a nitrogen bridge to the dyestuff molecule
BAYER AG14 citations74
US4065446ADec 27, 1977
Reactive dyestuffs containing urea alkylene linkage between chromophore and reactive radical
BAYER AG12 citations73
US4024144AMay 17, 1977
Polycyclic dyestuffs
BAYER AG9 citations73
US4036862AJul 19, 1977
1-Amino-2-(bromophenoxy-alkoxy)-4-hydroxy anthraquinone dyestuffs
BAYER AG6 citations71
US4101551AJul 18, 1978
Quinophthalone dyestuffs
BAYER AG4 citations62
US3980677ASep 14, 1976
Anthraquinone dyestuffs containing sulphonic acid groups
BAYER AG5 citations62
US3932419AJan 13, 1976
Quinophthalone dyestuffs
BAYER AG4 citations62
US4041053AAug 9, 1977
Process for the preparation of anthraquinone compounds
BAYER AG3 citations61
US3989450ANov 2, 1976
Nitroanthraquinones
BAYER AG2 citations61
US4162946AJul 31, 1979
Process for concentrating halogenoanthraquinones
BAYER AG2 citations60
US4102924AJul 25, 1978
Process for the preparation of diaryl compounds
BAYER AG3 citations60
US4045457AAug 30, 1977
Anthraquinone dyestuffs
BAYER AG3 citations60
US4006171AFeb 1, 1977
Process for the preparation of halogenoanthraquinones
BAYER AG3 citations56
US3971812AJul 27, 1976
Anthraquinone dyestuffs
BAYER AG1 citations52
US4104284AAug 1, 1978
Nitroanthraquinones
BAYER AG0 citations51
US4056544ANov 1, 1977
Anthraquinone compounds
BAYER AG0 citations51
US4000167ADec 28, 1976
Nitroanthraquinones
BAYER AG1 citations51
US4299966ANov 10, 1981
Process for the preparation of 4,4',7,7'-tetrachlorthioindigo in pigment form
BAYER AG1 citations49
US3979413ASep 7, 1976
Polycyclic dyestuffs
BAYER AG0 citations48
US4220779ASep 2, 1980
Process for the preparation of quinoline derivatives
BAYER AG1 citations47
US4105662AAug 8, 1978
Antraquinone dyestuffs
BAYER AG0 citations45
US3932473AJan 13, 1976
Process for the manufacture of 1-nitro-anthraquinone
BAYER AG0 citations45
US4179450ADec 18, 1979
Process for the preparation of 1-acylamino-5(8)-chloroanthraquinones
BAYER AG0 citations44
US4076736AFeb 28, 1978
Preparation of aminoanthraquinones from nitroanthraquinones
BAYER AG0 citations42