Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4898571 | Solid bowl centrifuge | Wolfgang Epper | 1990-02-06 |
| 4753660 | Method for the production of a coal suspension | Hans Kellerwessel, Jurek Golda, Peter Zahr, Gerhard Keichel | 1988-06-28 |