Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11603642 | Pin for coupler assemblies | Nathaniel K. Harshman, David L. Cox | 2023-03-14 |
| 11352762 | Coupler assembly to rotatably couple brackets to beams | Nathaniel K. Harshman, David L. Cox | 2022-06-07 |
| 11268258 | Extendable scarifier system | Benjamin J. Kovalick, Rena J. Kanegae, David L. Cox, Nathaniel K. Harshman | 2022-03-08 |