Ma; Chaoliang
Patent Applications and Registrations
Patent applications and USPTO patent grants for Ma; Chaoliang.The latest application filed is for "telescopic conductive tube".
- Ma; Chaoliang - Shenzhen CN
- Ma; Chaoliang - Suzhou CN
| Patent | Date |
|---|---|
| Telescopic tube housing a conductive assembly Grant 11,452,421 - Ma September 27, 2 | 2022-09-27 |
| Telescopic Conductive Tube App 20220296062 - MA; Chaoliang | 2022-09-22 |
| Telescopic conductive tube Grant 11,284,764 - Ma March 29, 2 | 2022-03-29 |
| Vacuum cleaner Grant D946,221 - Ma March 15, 2 | 2022-03-15 |
| Vacuum cleaner Grant D935,713 - Ma November 9, 2 | 2021-11-09 |
| Dry-wet Separation Cleaning Floor Brush App 20210298555 - WANG; Xiaofeng ; et al. | 2021-09-30 |
| Handheld vacuum cleaner Grant D927,110 - Ma August 3, 2 | 2021-08-03 |
| Vacuum cleaner Grant D920,609 - Ma May 25, 2 | 2021-05-25 |
| Vacuum cleaner Grant D918,502 - Ma May 4, 2 | 2021-05-04 |
| Vacuum cleaner Grant D913,611 - Ma March 16, 2 | 2021-03-16 |
| Vacuum cleaner Grant D905,360 - Ma December 15, 2 | 2020-12-15 |
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