Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5198801 | Low amperage dual sensing fire detector | Michael J. Heslop | 1993-03-30 |
| 5170148 | Radiant energy testing device for fire detectors | Robert Richard Matthews | 1992-12-08 |
| 4651140 | Fire detector | — | 1987-03-17 |
| 4577186 | Fire detector | — | 1986-03-18 |