Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4523016 | Process for the catalytic dehydrogenation of piperidine | Georg Grigoleit, Rudolf Oberkobusch, Jurgen Stadelhofer | 1985-06-11 |
| 4357472 | Process for the production of thionaphthene from thionaphthene sulfonic acid | Georg Grigoleit, Helmut Kohler, Gerd Collin | 1982-11-02 |