Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10458523 | Automatic gear-shifting device | David R. Hall, Daniel Madsen, Joe Fox, Nathan Davis | 2019-10-29 |
| 10400867 | Automatic gear-shifting device | David R. Hall, Daniel Madsen, Joe Fox, Nathan Davis | 2019-09-03 |