Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6234774 | Coaxial valve-type alternating pump especially for boats such as a rubber dinghy, manually operated or motor-driven | — | 2001-05-22 |
| 5807148 | Portable apparatus for using bicycles as a type of watercraft | — | 1998-09-15 |
| 5415574 | Land vehicle floatable and steerable in water | — | 1995-05-16 |