Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4878355 | Method and apparatus for improving cooling of a compressor element in an air conditioning system | Thomas J. Beckey | 1989-11-07 |
| 4848099 | Adaptive refrigerant control algorithm | Thomas J. Beckey | 1989-07-18 |
| 4817705 | Thermostatic control without temperature droop using duty cycle control | Michael R. Levine | 1989-04-04 |