Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4962858 | Cleaning sluice boxes | John C. Newman | 1990-10-16 |
| 4422818 | Scrapper type vehicle | — | 1983-12-27 |
| 4271918 | Hydrostatic variable ratio control system | — | 1981-06-09 |
| 4236591 | Off-road vehicle that both oscillates and articulates | — | 1980-12-02 |
| 4222186 | Adaptable combination of vehicle and attachments | — | 1980-09-16 |
| 4215547 | Hydrostatic system with over control compensation | — | 1980-08-05 |