Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5104271 | Bolt connection | — | 1992-04-14 |
| 4926921 | Louver | Joachim Heinemann, Karl-Heinz Spies, Frank Keller, Bernd Beicht, Wulf Leitermann | 1990-05-22 |
| 4850638 | Cross-beam for a motor vehicle body | Johannes Vollrath | 1989-07-25 |
| 4274815 | Rotary combustion engine of trochoid design with oil return groove | Wulf Leitermann | 1981-06-23 |