Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6756906 | Self-diagnostic smoke detector | Robert Gerard Fischette, Kirk R. Johnson, Douglas H. Marman | 2004-06-29 |
| 6396405 | Automatic verification of smoke detector operation within calibration limits | Robert Gerard Fischette, Kirk R. Johnson, Douglas H. Marman | 2002-05-28 |
| 5936533 | Method of automatic verification of smoke detector operation within calibration limits | Robert Gerard Fischette, Kirk R. Johnson, Douglas H. Marman | 1999-08-10 |
| 5821866 | Self-diagnosing smoke detector assembly | Robert Gerard Fischette, Kirk R. Johnson, Douglas H. Marman | 1998-10-13 |
| 5798701 | Self-adjusting smoke detector with self-diagnostic capabilities | Daniel Croft, Kirk R. Johnson, Douglas H. Marman, Mark A. Peltier | 1998-08-25 |
| 5546074 | Smoke detector system with self-diagnostic capabilities and replaceable smoke intake canopy | Robert Gerard Fischette, Kirk R. Johnson, Douglas H. Marman | 1996-08-13 |