Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4445638 | Hydronic antitrust operating system | John C. Connell | 1984-05-01 |
| 4417452 | Heat pump system defrost control | Robert T. Ruminsky | 1983-11-29 |
| 4405299 | Burner ignition and flame monitoring system | — | 1983-09-20 |
| 4332141 | Defrost control system for refrigeration system | Dale A. Mueller, Robert T. Ruminsky, Rodger C. Wolfgram | 1982-06-01 |
| 4316365 | Defrost control system for refrigeration system | Dale A. Mueller, Robert T. Ruminsky, Rodger C. Wolfgram | 1982-02-23 |
| 4302947 | Heat pump system defrost control | Dale A. Mueller | 1981-12-01 |
| 4301660 | Heat pump system compressor fault detector | Dale A. Mueller | 1981-11-24 |
| 4246763 | Heat pump system compressor fault detector | Dale A. Mueller | 1981-01-27 |
| 4220010 | Loss of refrigerant and/or high discharge temperature protection for heat pumps | Dale A. Mueller | 1980-09-02 |
| 4211089 | Heat pump wrong operational mode detector and control system | Dale A. Mueller | 1980-07-08 |
| 4209994 | Heat pump system defrost control | Dale A. Mueller | 1980-07-01 |