Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11573032 | Water heater pilot operation | Jozef Boros, Raheel A. Chaudhry | 2023-02-07 |
| 9995716 | Method for determining boiler tube cold side cracking and article for accomplishing the same | Jacques L. Brignac, Robert E. Lucas, Christopher D. Curl | 2018-06-12 |
| 7290502 | System and methods for controlling a water heater | R. Dale Shropshire, John S. Haefner, G. Scott Vogel | 2007-11-06 |
| 6964248 | Fuel-fired heating appliance with temperature-based fuel shutoff system | Gordon W. Stretch, Bruce Hotton, John H. Scanlon, Gary A. Elder, James T. Campbell +6 more | 2005-11-15 |
| 6957628 | Fuel-fired heating appliance with temperature-based fuel shutoff system | Gordon W. Stretch, Bruce Hotton, John H. Scanlon, Gary A. Elder, James T. Campbell +3 more | 2005-10-25 |
| 6893253 | Fuel-fired heating appliance with temperature-based fuel shutoff system | Gordon W. Stretch, Bruce Hotton, John H. Scanlon, Gary A. Elder, James T. Campbell +6 more | 2005-05-17 |
| 6814031 | Combustion air shutoff apparatus for a fuel-fired heating appliance | Gordon W. Stretch, Bruce Hotton, John H. Scanlon, Gary A. Elder, James T. Campbell +4 more | 2004-11-09 |
| 6776125 | Methods of operating a fuel-fired heating apparatus | Gordon W. Stretch, Bruce Hotton, John H. Scanlon, Gary A. Elder, James T. Campbell +4 more | 2004-08-17 |
| 6715451 | Fuel-fired heating appliance with combustion air shutoff system having frangible temperature sensing structure | Gordon W. Stretch, Bruce Hotton, John H. Scanlon, Gary A. Elder, James T. Campbell +4 more | 2004-04-06 |
| 6497200 | Fuel-fired heating appliance with combustion chamber temperature-sensing combustion air shutoff system | Gordon W. Stretch, John H. Scanlon, Gary A. Elder, James T. Campbell, Eric M. Lannes | 2002-12-24 |
| 6422178 | Fuel-fired heating appliance with louvered combustion chamber flame arrestor plate | Eric M. Lannes, Mark Andrew Taylor | 2002-07-23 |
| 6390028 | Fuel-fired liquid heating appliance with burner shut-off system | John P. Langmead, Jacob H. Hall | 2002-05-21 |