Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4840550 | Internal axis rotary piston engine with protrusions having two sealing corners | Manfred Brandstadter, Ulrich Henke | 1989-06-20 |
| 4822260 | Device for controlling fluid supply to a rotary piston machine | Ulrich Henke, Manfred Brandstadter, Klaus Heikrodt, Herbert Schneider | 1989-04-18 |
| 4794904 | Internal combustion engine having an injection nozzle for mixture preparation | Rainer Sudbeck, Ulrich Henke | 1989-01-03 |
| 4795326 | Rotary piston machine having inner and outer rotors and a reinforcing belt | Klaus Heikrodt, Werner Seifert | 1989-01-03 |