Inventor
HEITMANN WILHELM
DE9 patents
⚠️ This page may combine multiple inventors who share the name “HEITMANN WILHELM”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HUELS CHEMISCHE WERKE AG
5 patentsUS5427759AJun 27, 1995
Method of recovering ammonia and compounds from offgases contaminated with organic materials, carbon dioxide, and ammonia
HUELS CHEMISCHE WERKE AG54 citations94
US4541897ASep 17, 1985
Distillation process for the production of dehydrated ethanol
HUELS CHEMISCHE WERKE AG125 citations92
US5360931ANov 1, 1994
Continuous multi-stage process for the preparation of (cyclo) aliphatic diisocyanates
HUELS CHEMISCHE WERKE AG48 citations90
US4380509AApr 19, 1983
Method for producing a catalyst for the hydration of olefins
HUELS CHEMISCHE WERKE AG14 citations72
US4329257AMay 11, 1982
Method of producing a catalyst from clay minerals for the hydration of olefins
HUELS CHEMISCHE WERKE AG15 citations72
VEBA CHEMIE AG
4 patentsUS3960672AJun 1, 1976
Continuous distillation process for purifying alkanols
VEBA CHEMIE AG27 citations74
US4351970ASep 28, 1982
Method of preparing alcohols having two to four carbon atoms by catalytic hydration of olefins
VEBA CHEMIE AG12 citations71
US4150245AApr 17, 1979
Hydration of olefins using vaporized phosphoric acid
VEBA CHEMIE AG9 citations68
US4036890AJul 19, 1977
Preparation of organic hydroperoxides
VEBA CHEMIE AG5 citations51