Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8704670 | Target based smoke detection system | Kwong Wing Au, Scott Lang | 2014-04-22 |
| 6521907 | Miniature photoelectric sensing chamber | Kalvin Watson, Dragan Petrovic, George A. Schoenfelder, Frederick J. Conforti, James F. Wiemeyer | 2003-02-18 |
| 6166648 | Aspirated detector | Jim Wiemeyer, George A. Schoenfelder, Lee D. Tice | 2000-12-26 |
| 5926098 | Aspirated detector | Jim Wiemeyer, George A. Schoenfelder, Lee D. Tice | 1999-07-20 |