Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D566646 | Universal tool carrier | — | 2008-04-15 |
| 6176540 | Modular tool and accessories carrier for use on truck beds | — | 2001-01-23 |
| 5668310 | Vehicle fuel usage tracking device | Michael K. Parkman, Curtis J. Donaldson | 1997-09-16 |
| 5505076 | Vehicle fuel usage tracking device | Michael K. Parkman, Curtis J. Donaldson | 1996-04-09 |