Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11999310 | Refrigerated trailer door protector | — | 2024-06-04 |
| 9387388 | Electric skateboard | — | 2016-07-12 |
| 7971847 | Roof rack and roof rack system for a portable shelter | Craig Hartzell, Kevin Koch, Douglas L. Shaffer | 2011-07-05 |
| 7581738 | Moveable storage structure system | Craig Hartzell, Kevin Koch | 2009-09-01 |
| 7506775 | Shelter mast support system | Craig Hartzell, Kevin Koch | 2009-03-24 |