Issued Patents 2024
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12055143 | Screw compressor with adjustable passage | David Okhman, David M. Rockwell, Yifan Qiu, Brandon Schwoeppe, Joshua S. Lavoie | 2024-08-06 |
| 11959484 | Direct drive refrigerant screw compressor with refrigerant lubricated bearings | Yifan Qiu, David M. Rockwell | 2024-04-16 |
| 11959673 | Enhanced method of lubrication for refrigeration compressors | Jeremy Wallet-Laily, Ulf J. Jonsson, Charbel Rahhal, Nicolas Fonte, Zaffir A. Chaudhry +4 more | 2024-04-16 |
| 11898561 | Direct drive refrigerant screw compressor with refrigerant lubricated rotors | Yifan Qiu, Ulf J. Jonsson, Zaffir A. Chaudhry, David M. Rockwell | 2024-02-13 |