Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5775560 | Multi-functional, hitch mounted carrying apparatus | James B. Zahn, Paul B. Knight | 1998-07-07 |
| 4826188 | Rear wheel steering drive mechanism | Evan S. Boberg | 1989-05-02 |
| 4813694 | Rear wheel steering drive mechanism | Evan S. Boberg | 1989-03-21 |