Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5209189 | Internal-combustion engine | Hans Weitzenbuerger, Albert Nolte, Michael Klocke | 1993-05-11 |
| 4380971 | Internal combustion engine having a retarder | Paul Tholen, Leo Lichtblau, Friedemann Albers | 1983-04-26 |