Inventor

FRUEHBEIS HORST

3 patents

Patents

3 patents

US4578469AMar 25, 1986

Benzo[de]pyrano[3,2-g]isoquinoline derivatives useful as dyestuffs

HOECHST AG9 citations71

US4336155AJun 22, 1982

Mixtures of optical brighteners

HOECHST AG14 citations71

US4330427AMay 18, 1982

Mixtures of optical brighteners

HOECHST AG19 citations71