Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4455130 | Gear machine with oppositely aligned sealing elements | Wilhelm Dworak, Siegfried Mayer, Karl-Heinz Muller, Gunter Wolff | 1984-06-19 |
| 4443168 | Gear machine centering arrangement | Wilhelm Dworak, Martin Fader, Claus Jons, Siegfried Mayer, Karl-Heinz Muller +3 more | 1984-04-17 |
| 4400146 | Fluid-operated gear machine | Wilhelm Dworak, Karl-Heinz Muller, Siegfried Mayer, Kurt Grabow | 1983-08-23 |
| 4182602 | Leakage prevention means for a positive displacing machine | Wilhelm Dworak, Karl-Heinz Muller | 1980-01-08 |