Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5448638 | Security apparatus and system for retail environments | William S. Johnson, Edward A. Payne, Donald A. Boschker | 1995-09-05 |
| 5384850 | Security apparatus and system for retail environments | William S. Johnson, Edward A. Payne, Donald A. Boschker | 1995-01-24 |
| 5228084 | Security apparatus and system for retail environments | William S. Johnson, Edward A. Payne, Donald A. Boschker | 1993-07-13 |