Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7073822 | Flexible cable lever arm steering system apparatus and method | David Renfroe | 2006-07-11 |
| 6709013 | Land vehicle with lever steering | David Renfroe | 2004-03-23 |
| 4300863 | Tool suspension system | — | 1981-11-17 |