Inventor
KOWARSCH HEINRICH
DE9 patents
⚠️ This page may combine multiple inventors who share the name “KOWARSCH HEINRICH”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
BASF AG
8 patentsUS5554774ASep 10, 1996
Preparation of chlorinated violanthrones or isoviolanthrones
BASF AG4 citations61
US4940492AJul 10, 1990
Colorant mixtures containing isoquinoline derivatives, use thereof in printing inks, and novel isoquinoline derivatives
BASF AG2 citations61
US4785114ANov 15, 1988
Quinophthalone dyes
BASF AG5 citations61
US4491544AJan 1, 1985
Dyes having a diazo component and an isoquinoline coupling component
BASF AG2 citations61
US4751314AJun 14, 1988
Preparation of tetrachloro-3-iminoisoindolin-1-one
BASF AG1 citations51
US4861898AAug 29, 1989
Isoindoline metal complexes
BASF AG1 citations50
US4563519AJan 7, 1986
Anthraquinone azopyrazalone colorants
BASF AG1 citations50
US4897478AJan 30, 1990
Preparation of haloisatoic anhydrides
BASF AG0 citations48