Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5210477 | Fan control and diode interlock for electric heaters | Mitchell R. Rowlette, Gary J. Steffes | 1993-05-11 |
| 5173843 | Fan control and diode interlock for electric heaters | Mitchell R. Rowlette, Gary J. Steffes | 1992-12-22 |
| 5144273 | High limit thermostat apparatus | — | 1992-09-01 |
| 5051717 | High limit thermostat apparatus | — | 1991-09-24 |