Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |