Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7730879 | Method and device for igniting a combustible gas mixture in a combustion engine | Georg Maul, Dieter Kuhnert | 2010-06-08 |
| 4716812 | Hydraulic drive | Horst Plettner, Edelwald Lutz, Egon Orth, Rudi Weingaertner | 1988-01-05 |
| 4654492 | Switch drive | Walter Hahn, Horst Plettner | 1987-03-31 |