Issued Patents All Time
Showing 1–10 of 10 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9401676 | Solar photovoltaic-thermal collector assembly and method of use | — | 2016-07-26 |
| 9263986 | Solar hybrid photovoltaic-thermal collector assembly | — | 2016-02-16 |
| 6337437 | Electric power generating lantern using forced air cooled low bandgap photovoltaic cells | Lewis M. Fraas, Paul D. Custard | 2002-01-08 |
| 6081205 | Electronic parking meter and electric automobile recharging station | — | 2000-06-27 |
| 5616186 | Thermophotovoltaic electric generator using low bandgap photovoltaic cells with a hydrocarbon burner and enhanced catalytic infrared emitter | Lewis M. Fraas, John E. Samaras | 1997-04-01 |
| 5588403 | Rack and pinion valve operating system | — | 1996-12-31 |
| 4395589 | Electro-acoustical structure | — | 1983-07-26 |
| 4252076 | Automatic signaling device | — | 1981-02-24 |
| 4244354 | Solar panel | — | 1981-01-13 |
| 4215646 | Low pressure differential detecting whistle | — | 1980-08-05 |