P

Inventor

DITTMER HELMUT

DE5 patents
⚠️ This page may combine multiple inventors who share the name “DITTMER HELMUT”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

BAYER AG

3 patents
US4246180AJan 20, 1981

Process for separating off 1-amino-4-bromoanthraquinone-2-sulphonic acid

BAYER AG5 citations54
US4213910AJul 22, 1980

Process for the preparation of 1-amino-4-bromoanthraquinone-2-sulphonic acid I

BAYER AG2 citations50
US4741867AMay 3, 1988

Process for the preparation of 1-amino-2-bromo-4-hydroxyanthraquinone

BAYER AG0 citations43

KERNFORSCHUNGSZ KARLSRUHE

1 patent
US4849179AJul 18, 1989

Apparatus for taking samples by thermal desorption

KERNFORSCHUNGSZ KARLSRUHE47 citations84

GEESTHACHT GKSS FORSCHUNG

1 patent
US4848935AJul 18, 1989

Adapter element

GEESTHACHT GKSS FORSCHUNG20 citations75