Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6762688 | Device with silencing circuitry | Derek Johnston, Vincent Mori, Kenneth L. Venzant | 2004-07-13 |
| 6353395 | Interconnectable detector with local alarm indicator | — | 2002-03-05 |