Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6327878 | Portable security device | — | 2001-12-11 |
| 6145351 | Perimeter security system with improved Z-bar lock for maximum degree of mechanical and electronic protection | — | 2000-11-14 |
| 5771720 | Z-bar security system with key and secured latch | — | 1998-06-30 |
| 5244240 | Z-bar security system | Robert Nordmeyer | 1993-09-14 |