Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5386042 | Preparation of 1,4-diaminoanthraquinone-2,3-disulfonic acid and 1,4-diaminoanthraquinone-2,3-dinitrile | Matthias Dust, Udo Bergmann | 1995-01-31 |
| 4992588 | Preparation of o-acylaminomethylbenzyl halides | Josef Mueller, Walter-Weilant Wiersdorff, Werner Kirschenlohr | 1991-02-12 |
| 4508924 | Preparation of o-acylphenols and p-acylphenols | Josef Mueller, Walter-Wielant Wiersdorff, Werner Kirschenlohr | 1985-04-02 |