Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5031416 | Variable area refrigerant expansion device having a flexible orifice | Alan S. Drucker | 1991-07-16 |
| 4454725 | Method and apparatus for integrating a supplemental heat source with staged compressors in a heat pump | — | 1984-06-19 |
| 4324105 | Series compressor refrigeration circuit with liquid quench and compressor by-pass | — | 1982-04-13 |
| 4318277 | Non-reverse hot gas defrost system | Richard J. Duell, Donald J. Casler | 1982-03-09 |
| 4306420 | Series compressor refrigeration circuit with liquid quench and compressor by-pass | — | 1981-12-22 |
| 4286435 | Hot gas defrost system | Paul S. Sacks | 1981-09-01 |
| 4279129 | Hot gas defrost system | Paul S. Sacks | 1981-07-21 |
| 4268291 | Series compressor refrigeration circuit with liquid quench and compressor by-pass | — | 1981-05-19 |
| 4246760 | Non-reverse hot gas defrost system | Richard J. Duell, Donald J. Casler | 1981-01-27 |
| 4215555 | Hot gas defrost system | Paul S. Sacks | 1980-08-05 |
| 4202409 | One piece top cover with stamped open louvers and motor mount | Richmond S. Hayes, Jr., Lester N. Miller | 1980-05-13 |