Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5018759 | Tamper resistant trailer hitch | S. Leonard Villalon, William H. Shoffner | 1991-05-28 |
| 4925205 | Tamper resistant trailer hitch | S. Leonard Villalon, William H. Shoffner | 1990-05-15 |