Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7464550 | Vehicle with combustion engine and auxiliary power unit | Michael Hoetger, Herbert Clemens | 2008-12-16 |
| 6829894 | Closed circuit steam engine | Carsten Bloch | 2004-12-14 |
| 5671607 | Compression refrigeration machine | Herbert Clemens, Ulrich Plantikow | 1997-09-30 |