Issued Patents All Time
Showing 1–25 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9429337 | Water heater having a down fired combustion assembly | Christopher Stafford | 2016-08-30 |
| 8082888 | Thermal switch for energy sustaining water heater | Garrett Doss | 2011-12-27 |
| 7665211 | Method of manufacturing a combustion chamber for a water heater | Garrett Doss, Michael Gordon | 2010-02-23 |
| 7665210 | Method of manufacturing a combustion chamber for a water heater | Garrett Doss, Michael Gordon | 2010-02-23 |
| 7458341 | Water heater with convoluted flue tube | — | 2008-12-02 |
| 7409925 | Water heater foam dam and component cover and method for covering a component of a water heater | Ryan Ritsema | 2008-08-12 |
| 7337517 | Method of manufacturing a combustion chamber for a water heater | Garrett Doss, Michael Gordon | 2008-03-04 |
| 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 |
| 6684821 | Energy sustaining water heater | Garrett Doss | 2004-02-03 |
| 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, Larry D. Kidd | 2002-12-24 |
| 6422178 | Fuel-fired heating appliance with louvered combustion chamber flame arrestor plate | Mark Andrew Taylor, Larry D. Kidd | 2002-07-23 |
| 6142216 | Indirect water heater | — | 2000-11-07 |
| 6056542 | Burner for reducing nitrogen oxides and carbon monoxide | Timothy D. Scott | 2000-05-02 |
| 5988117 | Top inlet for a water heater | — | 1999-11-23 |
| 5954492 | Burner for reducing nitrogen oxides and carbon monoxide | Timothy D. Scott | 1999-09-21 |
| 5943984 | Side inlet for a water heater | — | 1999-08-31 |
| 5761379 | Water heater capable of being hung from a support | — | 1998-06-02 |
| 5682666 | Method of making a water heater capable of being hung from a support | — | 1997-11-04 |
| 5660165 | Back-up heater | — | 1997-08-26 |
| 5596952 | Indirect water heater | Charles W. Staats | 1997-01-28 |