Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4407701 | Apparatus for treating gases produced from coal | Dietrich Wagener, Peter Sauder, Otto Abel | 1983-10-04 |
| 4282066 | Process and apparatus for coking coal using microwave radiation | Dietrich Wagener, Hayri Ergun | 1981-08-04 |
| 4238891 | Arrangement for drying and preheating of coking coal | Joachim F. Meckel | 1980-12-16 |