Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4556117 | Free floating operator compartment | Gregory M. Chandler, Richard A. King | 1985-12-03 |
| 4365682 | Suspension system for operator compartment | Joseph A. Rogus, Paul R. Johnson, Richard A. King | 1982-12-28 |
| 4229124 | Automatic roof bolting system for mines | Joseph Parrotto, Francis X. Fontaine | 1980-10-21 |