Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7449990 | Communication protocol for interconnected hazardous condition detectors, and system employing same | John Andres, Michael W. Apperson, Joseph G. DeLuca, Chris R. Gilbert, Larry R. Ratzlaff +2 more | 2008-11-11 |
| 6791453 | Communication protocol for interconnected hazardous condition detectors, and system employing same | John Andres, Michael W. Apperson, Joseph G. DeLuca, Chris R. Gilbert, Larry R. Ratzlaff +2 more | 2004-09-14 |