Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6809656 | Violation alert speed display | Thomas E. Mitchell | 2004-10-26 |
| 6046686 | Violation alert speed display | Thomas E. Mitchell | 2000-04-04 |
| 5501423 | Portable easel with table | — | 1996-03-26 |
| 4237446 | Vehicle clearance detector | — | 1980-12-02 |