Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5592897 | Watercraft | Hans-Harald Kattwinkel | 1997-01-14 |
| 5574339 | Drive for rocking furniture | Martin Zagromski | 1996-11-12 |
| 5179906 | Watercraft | Hans-Harald Kattwinkel | 1993-01-19 |