Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5120875 | Process for the preparation of chlorine-substituted aromatic amines | Udo Birkenstock, Ulrich Kappler, Herbert Schmidt | 1992-06-09 |
| 4400560 | Process for the preparation of a mixture of low-molecular weight polyhoric alcohols | Roland Richter, Hanns P. Muller, Kuno Wagner, Rudolf Helm | 1983-08-23 |
| 4230637 | Process for the preparation of chlorine-substituted aromatic amines | — | 1980-10-28 |