Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5137393 | Arrangement for covering inclined loose material surfaces | Bernd Koglin, Rolf Rink, Josef Schafer, Wolfgang Vogel, Rudolf Krause | 1992-08-11 |
| 4973196 | Process for the intermediate sealing of dumps | Bernd Koglin, Rolf Rink, Josef Schafer, Wolfgang Vogel | 1990-11-27 |