Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11231455 | System and method for controlling temperature at test sites | Norbert Elsdoerfer | 2022-01-25 |
| 10731903 | System and method for device under test cooling using digital scroll compressor | Norbert Elsdoerfer | 2020-08-04 |
| 7716945 | Pressure equalization port apparatus and method for a refrigeration unit | — | 2010-05-18 |
| 7306362 | Food processor with a transmission device | Chin-Kok Lim, Chien-I Tang | 2007-12-11 |
| 7048511 | Device for prevention of backward operation of scroll compressors | — | 2006-05-23 |
| 6893227 | Device for prevention of backward operation of scroll compressors | — | 2005-05-17 |
| 6845628 | Method and apparatus for temperature control in a refrigeration device | — | 2005-01-25 |
| 6845632 | Cooling circuit apparatus and method | Brian Darling, James D. Nye | 2005-01-25 |
| 6766652 | Dual independent chamber ultra-low temperature freezer | Allan Kelly | 2004-07-27 |
| 6658875 | Method and apparatus for temperature control in a refrigeration device | — | 2003-12-09 |
| 6631625 | Non-HCFC refrigerant mixture for an ultra-low temperature refrigeration system | — | 2003-10-14 |
| 6601396 | Freezer defrost method and apparatus | Richard H. Bair, III | 2003-08-05 |
| 6557358 | Non-hydrocarbon ultra-low temperature system for a refrigeration system | Allan Kelly | 2003-05-06 |
| 6324856 | Multiple stage cascade refrigeration system having temperature responsive flow control and method | — | 2001-12-04 |
| 5702632 | Non-CFC refrigerant mixture | — | 1997-12-30 |
| 5408848 | Non-CFC autocascade refrigeration system | — | 1995-04-25 |