Issued Patents 1989
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878355 | Method and apparatus for improving cooling of a compressor element in an air conditioning system | Lorne W. Nelson | 1989-11-07 |
| 4860552 | Heat pump fan control | — | 1989-08-29 |
| 4848099 | Adaptive refrigerant control algorithm | Lorne W. Nelson | 1989-07-18 |
| 4836442 | Compensation circuit for sensor lag to reduce undershoot and overshoot | — | 1989-06-06 |