Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12376534 | Stump grinder with grinding arm and control | Joseph C. Knipp, Christopher J. Kost, David A. Murray, John P. Azure | 2025-08-05 |
| 11672210 | Stump grinder with laterally offset grinding arm operated by single joystick | Joseph C. Knipp, Christopher J. Kost, David A. Murray, John P. Azure | 2023-06-13 |
| 11109542 | Stump grinder with laterally offset grinding arm operated by single joystick | Joseph C. Knipp, Christopher J. Kost, David A. Murray | 2021-09-07 |