Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6309179 | Hydro turbine | — | 2001-10-30 |
| 5205765 | Boat hull and propulsion system or the like | — | 1993-04-27 |
| 4505684 | Thrust tube propulsion system | Finn Christensen | 1985-03-19 |
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6309179 | Hydro turbine | — | 2001-10-30 |
| 5205765 | Boat hull and propulsion system or the like | — | 1993-04-27 |
| 4505684 | Thrust tube propulsion system | Finn Christensen | 1985-03-19 |