Helmut Dittmer
4Patents
1h-index
7Co-inventors
33Inventor score
Filing activity: Aug 31, 1978 → May 14, 1987
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4849179A | Apparatus for taking samples by thermal desorption | Physics | 30 | Expired |
| US4213910A | Process for the preparation of 1-amino-4-bromoanthraquinone-2-sulphonic acid I | Chemistry; Metallurgy | 1 | Expired |
| US4246180A | Process for separating off 1-amino-4-bromoanthraquinone-2-sulphonic acid | Chemistry; Metallurgy | 1 | Expired |
| US4741867A | Process for the preparation of 1-amino-2-bromo-4-hydroxyanthraquinone | Chemistry; Metallurgy | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.