Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6062485 | Radiant heating system reset control | Daniel K. Stege | 2000-05-16 |
| 5779143 | Electronic boiler control | Larry Milesky | 1998-07-14 |
| 5604657 | Relay circuit having a test switch and method of testing a relay circuit | — | 1997-02-18 |
| 5099390 | Multiple orientation mounting thermostat | — | 1992-03-24 |
| 4512288 | Furnace heat exchanger | — | 1985-04-23 |
| 4352656 | Gas appliance control device | Douglas Brad Campbell | 1982-10-05 |
| 4319873 | Flame detection and proof control device | Douglas Brad Campbell | 1982-03-16 |