Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5210477 | Fan control and diode interlock for electric heaters | Mitchell R. Rowlette, Kenneth L. Hayden | 1993-05-11 |
| 5173843 | Fan control and diode interlock for electric heaters | Mitchell R. Rowlette, Kenneth L. Hayden | 1992-12-22 |