Inventor
GROLL MANFRED
16 patents
⚠️ This page may combine multiple inventors who share the name “GROLL MANFRED”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BAYER AG
15 patentsUS5163971ANov 17, 1992
Dyestuff mixtures of metal phthalocyanine and pyridone azo reactive dyes
BAYER AG13 citations73
US4282000AAug 4, 1981
Dyestuff solutions, their preparation and their use for dyeing paper
BAYER AG12 citations73
US4246174AJan 20, 1981
Process for the preparation of phthalocyanine reactive dyestuffs
BAYER AG8 citations73
US4198203AApr 15, 1980
Dyestuff solutions of copper phthalocyanine derivatives for paper dyeing
BAYER AG9 citations73
US4024144AMay 17, 1977
Polycyclic dyestuffs
BAYER AG9 citations73
US3989692ANov 2, 1976
Reactive dyestuffs
BAYER AG12 citations73
US4268267AMay 19, 1981
Phthalocyanine reactive dyestuffs
BAYER AG7 citations70
US4267107AMay 12, 1981
Reactive dyestuffs
BAYER AG6 citations62
US4101551AJul 18, 1978
Quinophthalone dyestuffs
BAYER AG4 citations62
US3932419AJan 13, 1976
Quinophthalone dyestuffs
BAYER AG4 citations62
US5051501ASep 24, 1991
Reactive phthalocyanine dyestuffs containing a fluorochloropyrimidinyl group
BAYER AG5 citations59
US4647409AMar 3, 1987
Copper-phthalocyanine dyestuffs
BAYER AG3 citations58
US4537721AAug 27, 1985
Cu-Pc dyestuffs
BAYER AG5 citations58
US4286962ASep 1, 1981
Phthalocyanine reactive dyestuffs, their preparation and their use for dyeing materials containing hydroxyl groups or amide groups
BAYER AG1 citations47
US4277245AJul 7, 1981
Process for dyeing and printing cellulose fibres
BAYER AG0 citations41