Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11679821 | Pivoting cab fairing | Jon David Polzin | 2023-06-20 |
| D760633 | Roof assembly | Wallace A. Peltola, Jonathan Duncan, Jon David Polzin, Alec C. Wong | 2016-07-05 |
| D752488 | Roof assembly | Wallace A. Peltola, Jonathan Duncan, Jon David Polzin, Alec C. Wong | 2016-03-29 |
| D687359 | Roof assembly | Wallace A. Peltola, Jonathan Duncan, Jon David Polzin, Alec C. Wong | 2013-08-06 |
| D682172 | Cab door | Wallace A. Peltola, Jonathan Duncan, Scott M. Conway, Jon David Polzin | 2013-05-14 |
| 7272989 | Steering shaft bearing assembly | — | 2007-09-25 |