Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886418 | Blower for delivering cooling air to internal combustion engines | — | 1989-12-12 |
| 4667635 | Helical spring forming cooling channel around liquid-cooled cylinder | — | 1987-05-26 |
| 4380971 | Internal combustion engine having a retarder | Paul Tholen, Friedemann Albers, Dieter Esche | 1983-04-26 |