Inventor

DILL BERND

DE4 patents

⚠️ This page may combine multiple inventors who share the name “DILL BERND”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

CIBA GEIGY CORP

3 patents

US4825005AApr 25, 1989

Process for the preparation of aromatic ether and thioether compounds

CIBA GEIGY CORP29 citations89

US4767573AAug 30, 1988

Process for the preparation of a mixture of 1-amino-2-chloro-4-hydroxyanthraquinone and 1-amino-2-bromo-4-hydroxyanthraquinone

CIBA GEIGY CORP3 citations60

US4964876AOct 23, 1990

Blue anthraquinone disperse dyes and mixtures of blue disperse dyes

CIBA GEIGY CORP0 citations47

CIBA GEIGY AG

1 patent

US4659831AApr 21, 1987

Process for the preparation of anthraquinone imides

CIBA GEIGY AG4 citations57