Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4417452 | Heat pump system defrost control | Stephen L. Serber | 1983-11-29 |
| 4347974 | Temperature control system with night setback programming as a function of temperature conditioning load | B. Hubert Pinckaers | 1982-09-07 |
| 4332141 | Defrost control system for refrigeration system | Dale A. Mueller, Stephen L. Serber, Rodger C. Wolfgram | 1982-06-01 |
| 4316365 | Defrost control system for refrigeration system | Dale A. Mueller, Stephen L. Serber, Rodger C. Wolfgram | 1982-02-23 |