Inventor
WEIDEMUELLER WOLF
4 patents
Patents
4 patentsUS4795807AJan 3, 1989
Preparation of azo dyestuffs by diazotization and coupling in the presence of an ester
CASSELLA FARBWERKE MAINKUR AG13 citations70
US4360459ANov 23, 1982
Sulphur dyestuffs of the carbazole series
CASSELLA FARBWERKE MAINKUR AG0 citations48
US4320060AMar 16, 1982
Process for the preparation of derivatives of 3-(4-hydroxy-anilino)carbazole
CASSELLA FARBWERKE MAINKUR AG0 citations46
US4309178AJan 5, 1982
Process for isolating sulphur dyestuffs from aqueous crude melts containing sodium polysulphide
CASSELLA FARBWERKE MAINKUR AG0 citations31