Issued Patents All Time
Showing 26–45 of 45 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8869399 | Method of constructing an inner glass-lined steel tank for a hot water heater | Jean-Claude Lesage | 2014-10-28 |
| D679787 | Tank with a tankless water heater | — | 2013-04-09 |
| 7620302 | High efficiency, peak power reducing, domestic hot water heater | Jean-Claude Lesage | 2009-11-17 |
| 6957831 | Nipple for hot water tank conduits | — | 2005-10-25 |
| 6932233 | Fuel oil tank with evacuation channel | — | 2005-08-23 |
| 6923148 | Combustion chamber with high temperature protective coating | — | 2005-08-02 |
| 6901886 | Secondary burner for sealed combustion chamber of a gas-fired hot water heater | — | 2005-06-07 |
| 6807925 | Explosion-proof hot water heater with unsealed fuel combustion chamber | — | 2004-10-26 |
| 6698385 | Combustion chamber shield for hot water heaters | — | 2004-03-02 |
| 6666174 | Elevating base for gas-fired water heater | — | 2003-12-23 |
| 6662757 | Explosion proof gas-fired water heater | — | 2003-12-16 |
| 6647977 | Termination unit for a coaxial flue pipe | — | 2003-11-18 |
| 6334411 | High efficiency, glass-lined, combination space and hot water heater | Brian Lewis | 2002-01-01 |
| 6267261 | Cavitated insulating support base for hot water tank | — | 2001-07-31 |
| 5836554 | Support base for gas water heaters | — | 1998-11-17 |
| 5737800 | Hot water bushing | — | 1998-04-14 |
| 5722149 | Method and apparatus for the fabrication of metal cylinders | Gerry O'Donnell | 1998-03-03 |
| 5379365 | Replaceable adaptor for a hot water tank resistive heating element | — | 1995-01-03 |
| 5178351 | Insulating support base for a cylindrical electric hot water tank | — | 1993-01-12 |
| 4948948 | Water heater with multiple heating elements having different power | — | 1990-08-14 |