Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6932661 | Steering and directional reversing control for waterjet propulsion | Charles M. Dai | 2005-08-23 |
| 6926567 | Directional steering controlled jet propulsion | Charles M. Dai | 2005-08-09 |