Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11077406 | Central tube set, spiral wound reverse osmosis membrane component, and reverse osmosis water purifier | Xuegang Cai, Peng Gui, Fangzhen Zheng | 2021-08-03 |
| 10967330 | Central tube component of filter element and manufacturing method thereof | Xuegang Cai, Peng Gui | 2021-04-06 |
| 10807045 | Central tube for filter cartridge and filtering device having same | Xuegang Cai, Peng Gui | 2020-10-20 |
| 10589229 | Central tube component of filter element and manufacturing method thereof | Xuegang Cai, Peng Gui | 2020-03-17 |
| 10528492 | Circuit, method and apparatus for USB interface sharing | Tengyuan QIU | 2020-01-07 |