Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4944866 | Process for the hydrogenation of coal | Klaus-Dieter Fuhrmann, Ludwig Merz | 1990-07-31 |
| 4639310 | Process for the production of reformer feed and heating oil or diesel oil from coal by liquid-phase hydrogenation and subsequent gas-phase hydrogenation | Werner Dohler, Ludwig Merz, Heinz Frohnert, Bernd Uckermann, Alfons Jankowski +3 more | 1987-01-27 |
| 4583995 | Method of producing synthesis gas | Lothar Winckler, Klaus-Dieter Fuhrmann, Peter Wenning | 1986-04-22 |
| 4584060 | Low temperature carbonization process for coal hydrogenation residues | Lothar Winckler, Klaus-Dieter Fuhrmann, Peter Wenning | 1986-04-22 |