Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5949338 | Personal protection device | William F. Hall | 1999-09-07 |
| 5644297 | Personal protection device | William F. Hall | 1997-07-01 |
| 5517180 | Personal protection device | William F. Hall | 1996-05-14 |