Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4908471 | Method for the production of benzene carboxylic acids and benzene dicarboxylic acid esters | Hans Leuck | 1990-03-13 |
| 4554392 | Method of preparing 1,2-dichloroethane from ethylene and chlorine gas | Hans Leuck | 1985-11-19 |
| 4339570 | Process for the production of polyesters | Edgar Muschelknautz, Roland Vogelsgesang, Helmut Ohse, Eckhard Moller, Klaus Hachmann +2 more | 1982-07-13 |