Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8111980 | Water heater and method of controlling the same | — | 2012-02-07 |
| 7346274 | Water heater and method of controlling the same | — | 2008-03-18 |
| 6941899 | Annular foam seal | — | 2005-09-13 |
| 6795644 | Water heater | — | 2004-09-21 |
| 6633726 | Method of controlling the temperature of water in a water heater | — | 2003-10-14 |
| 6553947 | Water mixing system for water heaters | — | 2003-04-29 |
| 6498495 | Method and apparatus for testing fuel gas control systems for gas fired appliances | — | 2002-12-24 |
| 6455820 | Method and apparatus for detecting a dry fire condition in a water heater | — | 2002-09-24 |
| 6374046 | Proportional band temperature control for multiple heating elements | — | 2002-04-16 |
| 6363216 | Water heater having dual side-by-side heating elements | — | 2002-03-26 |
| 6237838 | Container for a hot water heater or similar article | — | 2001-05-29 |
| 5948304 | Water heater with proportional band temperature control for improved thermal efficiency | — | 1999-09-07 |
| 5899198 | Self clamping temporary foam dam for protecting water heater electrical components | — | 1999-05-04 |
| 5831250 | Proportional band temperature control with improved thermal efficiency for a water heater | — | 1998-11-03 |
| 5209368 | Insulated tank construction and improved self positioning sealing device for use therein | — | 1993-05-11 |