Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7849821 | Burner flashback detection and system shutdown apparatus | Jacob A. Peart, Gary A. Elder, William Jason Hall | 2010-12-14 |
| 7818095 | Water heater monitor/diagnostic display apparatus | Bruce Hotton, Troy E. Trant, Jozef Boros, Walter T. Castleberry | 2010-10-19 |
| 7298968 | Pumpless combination instantaneous/storage water heater system | Jozef Boros, Subbu Thenappan | 2007-11-20 |
| 7242310 | Control techniques for shut-off sensors in fuel-fired heating appliances | Bruce Hotton, Walter T. Castleberry | 2007-07-10 |
| 6418882 | Power vented, fuel fired water heater with soft ignition system | Troy E. Trant, Michael L. Burney, Gordon W. Stretch | 2002-07-16 |
| 6412447 | Fuel-fired water heater with flammable vapor sensor and associated induced flow tube | Troy E. Trant, Gary A. Elder, Bruce Hotton, Shannon Howard McCall | 2002-07-02 |
| 6035812 | Combustion air shutoff system for a fuel-fired heating appliance | Jacob H. Hall | 2000-03-14 |
| 4974579 | Induced draft, fuel-fired furnace apparatus having an improved, high efficiency heat exchanger | Timothy J. Shellenberger | 1990-12-04 |
| 4926840 | Pilot gas bypass system for fuel-fired furnaces | Timothy J. Shellenberger | 1990-05-22 |
| 4867673 | Condensing furnace | — | 1989-09-19 |
| 4779676 | Condensing furnace | — | 1988-10-25 |
| 4730600 | Condensing furnace | — | 1988-03-15 |