Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4758260 | Process and device for producing granulated slag sand from blast furnace slag | Dieter Geropp, Karl Wiedemer | 1988-07-19 |
| 4718649 | Rolling bellows for pneumatic cushioning of a vehicle | Klaus E. Pohlmann, Hartwig Voss, Gunter Drescher, Gerhard Thurow | 1988-01-12 |
| 4196078 | Process and apparatus for dewatering granulated material, especially granulated blast furnace slag | Erich Muller-Spath, Heinz Kister, Walter Schurhoff, Friedrich W. Hillnhutter, Walter Laucht | 1980-04-01 |