Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5594965 | Hospital bed adjustable foot stop | — | 1997-01-21 |
| 4717054 | Tire carrier with pivotable tire mount and variable counterforce device | — | 1988-01-05 |
| 4575161 | Anti-spin device | Karol W. Vanzant | 1986-03-11 |
| 4304317 | Method and apparatus for converting transfer cases for four-wheel drive vehicles | Karol W. Vanzant | 1981-12-08 |