Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4680146 | Process for the preparation of 4,4'-dinitrostilbene-2,2'-disulphonic acid salts | Friedrich Durholz | 1987-07-14 |
| 4496764 | Process for the preparation of 4-amino-3-methyl-phenol | Hans-Ulrich Alles, Gert Randau, Manfred Niese | 1985-01-29 |