| 11106346 |
Wireless device battery optimization tool for consumers |
Jing Li |
2021-08-31 |
| 9890980 |
System and method of freeze protection of a heat exchanger in an HVAC system |
Brian L. Merkel, Paul Kiningham |
2018-02-13 |
| 9459007 |
Low profile vent terminal with variable exhaust angle |
David Duane Warmuth, Gary E. Georgette |
2016-10-04 |
| 5433377 |
Interlock and forced air furnace and HRV |
James P. Sodo, Steven O. Heard |
1995-07-18 |
| 4916331 |
Synchronized input latch circuit with conditioning circuits for AC inputs |
— |
1990-04-10 |
| 4896828 |
Solid state emergency heat circuit |
— |
1990-01-30 |
| D305420 |
Electronic control module cover |
Walter E. Bujak, Jr. |
1990-01-09 |
| 4835715 |
Outdoor ambient temperature determination |
Ronald W. Bench, John M. Palmer, Daryl G. Erbs |
1989-05-30 |
| 4734628 |
Electrically commutated, variable speed compressor control system |
Ronald W. Bench |
1988-03-29 |
| 4729207 |
Excess air control with dual pressure switches |
Daniel J. Dempsey, Kevin D. Thompson |
1988-03-08 |
| 4703747 |
Excess air control |
Kevin D. Thompson, Daniel J. Dempsey |
1987-11-03 |