Yu; Chengpeng
Patent Applications and Registrations
Patent applications and USPTO patent grants for Yu; Chengpeng.The latest application filed is for "lift-pull pen".
- Yu; Chengpeng - Zhejiang CN
- YU; Chengpeng - Wenzhou CN
| Patent | Date |
|---|---|
| Lift-pull pen Grant 11,241,903 - Yu February 8, 2 | 2022-02-08 |
| Retractable pen Grant 11,241,904 - Yu February 8, 2 | 2022-02-08 |
| Retractable pen with a push button Grant 10,974,540 - Yu April 13, 2 | 2021-04-13 |
| Detachable and retractable pen Grant 10,960,705 - Yu March 30, 2 | 2021-03-30 |
| Lift-pull Pen App 20210023871 - YU; Chengpeng | 2021-01-28 |
| Retractable Pen App 20210016596 - YU; Chengpeng | 2021-01-21 |
| Garbage incineration device for garbage disposal Grant 10,718,514 - Yu | 2020-07-21 |
| Garbage Incineration Device For Garbage Disposal App 20200208836 - YU; Chengpeng | 2020-07-02 |
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