Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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, Ulrich Graeser +3 more | 1987-01-27 |
| 4597851 | Process for the utilization of waste waters in the hydrogenation of coal | Eckard Wolowski | 1986-07-01 |
| 4388172 | Liquefaction of coal | Bernhard Rodewald, Kurt Tippmer | 1983-06-14 |