Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4848982 | Arrangement for cooling a synthetic gas in a quenching cooler | Arnold Tolle, Heinz Haacker, Helmut Wensing | 1989-07-18 |
| 4813382 | Cooler for gases generated by gasification | Wilhelm Lindermann | 1989-03-21 |