Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4650029 | Off-the-road four-wheel drive vehicle | James E. Grinde | 1987-03-17 |
| 4577712 | Off-the road vehicle for recreational and work applications | James E. Grinde | 1986-03-25 |
| 4570738 | Snow vehicle equipped with wide, low-pressure tires | James E. Grinde | 1986-02-18 |