Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |