Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4517556 | Automatic bypass switch for household security system | Doug Hartley | 1985-05-14 |
| 4477798 | Fire Alarm control system | Doug Hartley | 1984-10-16 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4517556 | Automatic bypass switch for household security system | Doug Hartley | 1985-05-14 |
| 4477798 | Fire Alarm control system | Doug Hartley | 1984-10-16 |