Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4822260 | Device for controlling fluid supply to a rotary piston machine | Hans Baumgartner, Ulrich Henke, Manfred Brandstadter, Herbert Schneider | 1989-04-18 |
| 4795326 | Rotary piston machine having inner and outer rotors and a reinforcing belt | Hans Baumgartner, Werner Seifert | 1989-01-03 |