Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7469840 | Controller for a fuel fired water heating application | Donald E. Donnelly, G. Scott Vogel | 2008-12-30 |
| 6474979 | Device and method for triggering a gas furnace ignitor | — | 2002-11-05 |
| 6245131 | Electrostatic air cleaner | Jerry W. McElroy | 2001-06-12 |
| 4604046 | Direct ignition gas burner control system | Carl J. Mueller, Bernard T. Brown, John S. Haefner | 1986-08-05 |
| 4444551 | Direct ignition gas burner control system | Carl J. Mueller, Bernard T. Brown, John S. Haefner | 1984-04-24 |
| 4435150 | Gas burner control system | — | 1984-03-06 |
| 4308991 | Programmable electronic thermostat | Donald L. Peinetti | 1982-01-05 |
| 4306853 | Direct ignition gas burner control system with diode steering circuitry | — | 1981-12-22 |
| 4188181 | Gas burner control system | Robert L. Baysinger | 1980-02-12 |