Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9211013 | Resistive support mechanism | Patrick N. Harrison, James R. Edwards, Ken W. Vandervelden, David R. Gater | 2015-12-15 |
| 8342897 | Pedal propulsion system | David R. Gater | 2013-01-01 |