Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6521907 | Miniature photoelectric sensing chamber | Thomas W. Shoaff, Kalvin Watson, Dragan Petrovic, George A. Schoenfelder, James F. Wiemeyer | 2003-02-18 |
| 5936544 | Wireless access system | Eric V. Gonzales, Dennis Charlesbois, Ming-lam Ng, Cornelio M. Varilla | 1999-08-10 |
| 4467263 | Rechargeable battery-powered flashlight system | Kenneth R. Fenne | 1984-08-21 |
| 4460863 | Battery charging flashlight circuit | — | 1984-07-17 |
| 4452867 | Storage battery containing voltage reducing means | — | 1984-06-05 |
| 4414612 | Hand-held light with means for controlling beam width | Kenneth R. Fenne | 1983-11-08 |
| D264826 | Security system console | Philip J. Burnstein, Kenneth R. Fenne | 1982-06-08 |
| 4302753 | Multi-function combustion detecting device | — | 1981-11-24 |
| 4258261 | Electrode assembly for combustion products detector | — | 1981-03-24 |
| 4225860 | Sensitivity controlled dual input fire detector | — | 1980-09-30 |