Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7543800 | Single stack manual marine winch | David B. Grapes, Russell J Mayhew, Erik Arlet | 2009-06-09 |
| 7159852 | Manual marine winch internal gearing | Justin Dow, Erik Arlet, David B. Grapes, Richard A. Topping, Jr. | 2007-01-09 |