| 6450409 |
Method and apparatus for wiring room thermostat to two stage HVAC system |
Walter H. Bailey, Mark E. Miller |
2002-09-17 |
| 6244515 |
Universal two stage gas furnace ignition control apparatus and method |
Mark A. Eifler |
2001-06-12 |
| 6237420 |
Differential oil pressure control apparatus and method |
Mark A. Eifler |
2001-05-29 |
| 6220043 |
Apparatus and method for control of a heat pump system |
Robert K. Chaney, Jr., Mark E. Miller |
2001-04-24 |
| 6222333 |
DC brushless motor controller apparatus and method |
Ronald E. Garnett |
2001-04-24 |
| 5902099 |
Combined fan and ignition control with selected condition sensing apparatus |
Ronald E. Garnett, Mark A. Eifler |
1999-05-11 |
| 5806440 |
Method for controlling an induced draft fan for use with gas furnaces |
Youn H. Ting, Walter H. Bailey, Ronald E. Garnett |
1998-09-15 |
| 5720231 |
Induced draft fan control for use with gas furnaces |
Youn H. Ting, Walter H. Bailey, Ronald E. Garnett |
1998-02-24 |
| 5572104 |
Furnace control apparatus |
Craig Nold, Mark E. Miller, Robert B. Brown |
1996-11-05 |
| 5530615 |
Method and apparatus for enhancing relay life |
Mark E. Miller, Mark A. Eifler, Alan R. Sawyers, Craig Nold |
1996-06-25 |
| 5524556 |
Induced draft fan control for use with gas furnaces |
Youn H. Ting, Walter H. Bailey, Ronald E. Garnett |
1996-06-11 |
| 5506569 |
Self-diagnostic flame rectification sensing circuit and method therefor |
— |
1996-04-09 |
| 5397970 |
Interface circuit having improved isolation among signals for use with a variable speed electrically commutated fan motor |
Darryel L. Price, Craig Nold |
1995-03-14 |
| 5372427 |
Temperature sensor |
Francois A. Padovani, Tim H. McMains |
1994-12-13 |
| 5272427 |
Furnace control apparatus and method |
Craig Nold, Mark E. Miller, Robert B. Brown |
1993-12-21 |
| 5210477 |
Fan control and diode interlock for electric heaters |
Kenneth L. Hayden, Gary J. Steffes |
1993-05-11 |
| 5173843 |
Fan control and diode interlock for electric heaters |
Kenneth L. Hayden, Gary J. Steffes |
1992-12-22 |
| 5040417 |
Electronic relative humidity/temperature measuring system |
— |
1991-08-20 |
| 5034848 |
Low pressure sensor |
Werner Strasser, Youn H. Ting, Tim H. McMains |
1991-07-23 |