Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6418882 | Power vented, fuel fired water heater with soft ignition system | Michael L. Burney, William T. Harrigill, Gordon W. Stretch | 2002-07-16 |
| 6412447 | Fuel-fired water heater with flammable vapor sensor and associated induced flow tube | Gary A. Elder, William T. Harrigill, Bruce Hotton, Shannon Howard McCall | 2002-07-02 |