Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6796259 | Sailboat rotatable keel appendage | Bernard Olcott | 2004-09-28 |
| 6349659 | Sailboat rotatable keel appendage | — | 2002-02-26 |
| 4248281 | Roll-reefing jib sail | — | 1981-02-03 |
| 4217845 | Trailerable water ballasted sailboat | K. Dietrich Empacher | 1980-08-19 |