QIU; Yifan
Patent Applications and Registrations
Patent applications and USPTO patent grants for QIU; Yifan.The latest application filed is for "direct drive refrigerant screw compressor with refrigerant lubricated bearings".
- QIU; Yifan - Manlius NY
- Qiu; Yifan - Manilus NY
| Patent | Date |
|---|---|
| Direct Drive Refrigerant Screw Compressor With Refrigerant Lubricated Bearings App 20220074415 - QIU; Yifan ; et al. | 2022-03-10 |
| Direct Drive Refrigerant Screw Compressor With Refrigerant Lubricated Rotors App 20220065252 - QIU; Yifan ; et al. | 2022-03-03 |
| Foil Bearing Lubrication App 20210404720 - Sishtla; Vishnu M. ; et al. | 2021-12-30 |
| Enhanced Method Of Lubrication For Refrigeration Compressors App 20210247115 - Wallet-Laily; Jeremy ; et al. | 2021-08-12 |
| Screw compressor with oil shutoff and method Grant 10,288,070 - Akei , et al. | 2019-05-14 |
| Screw Compressor with Oil Shutoff and Method App 20170356448 - Akei; Masao ; et al. | 2017-12-14 |
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