Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7644686 | Water heating distribution system | Howard C. Holliman, Robert Eugene Olson, David L. Stricker | 2010-01-12 |
| 5911217 | Internally mounted flue damper with exterior free-standing damper drive | William D. Dameworth | 1999-06-15 |
| 5353750 | Apparatus for sealing a foam insulated water heater | — | 1994-10-11 |
| 5293844 | Protective shield for the electrical components of a water heater | — | 1994-03-15 |
| 5117810 | Apparatus for sealing a foam insulated water heater | — | 1992-06-02 |
| 4964394 | Water heater with heat trap in dip tube | — | 1990-10-23 |