Inventor

ZOELLER WALTER

DE5 patents

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

CLARIANT GMBH

2 patents

US5882360AMar 16, 1999

Water-soluble copper phthalocyanine dyestuffs, their preparation and their use

CLARIANT GMBH20 citations89

US5948910ASep 7, 1999

Water-soluble perylene dyestuffs, their preparation and their use

CLARIANT GMBH7 citations71

HOECHST AG

2 patents

US5783710AJul 21, 1998

Benzothioxanthene dyes, their preparation and their use

HOECHST AG15 citations71

US5597387AJan 28, 1997

Water-soluble polyazo dyestuffs

HOECHST AG9 citations71

HOECHT AKTIENGE SELLSCHAFT

1 patent

US5668260ASep 16, 1997

Tetrakisazo Compounds, the method of preparation thereof and the process of pyeing

HOECHT AKTIENGE SELLSCHAFT1 citations44