Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4875643 | Starter arrangement for a helicopter | Staas Gietzen, Hans Weiner, August Hofbauer, Juergen Hawener | 1989-10-24 |
| 4841926 | Multi-cylinder internal combustion engine with externally applied ignition and with turbocharger | Michael Beer, Staas Gietzen | 1989-06-27 |
| 4830312 | Airplane, preferably a helicopter | August Hofbauer, Manfred Hochkonig | 1989-05-16 |
| 4807439 | Exhaust gas system with silencer for a turbocharged internal combustion engine | Klaus-Peter Bessing, Claus Bruestle | 1989-02-28 |
| 4693670 | Adjusting device for an airplane propulsion system | Juergen Hawener | 1987-09-15 |