Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6158376 | Shock reduction in planing boats | — | 2000-12-12 |
| 5114313 | Base vented subcavitating marine propeller | — | 1992-05-19 |
| 5046444 | Base vented subcavitating hydrofoil section | — | 1991-09-10 |
| 4789306 | Marine propeller | Robert F. Kress | 1988-12-06 |