Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9542831 | Audible/visible evacuation notification device | — | 2017-01-10 |
| 8607645 | Time delay adjustment mechanism for sprinkler system water flow detector | William F. Laubach, Zoltan Borbath, James M. Murphy | 2013-12-17 |
| 7859395 | Intelligent duct smoke detector | Saba A. Farooqui, Michael Monroe | 2010-12-28 |
| 7834755 | Intelligent remote test/display unit for duct smoke detector | David P. Harter | 2010-11-16 |
| 6472980 | Device with built-in signal discrimination and output synchronization circuits | Hsing C. Jen, David P. Harter | 2002-10-29 |