Issued Patents 2020
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10624509 | Vacuum cleaner | Yonghua Wang, Min Zhong, Huazhen Tan | 2020-04-21 |
| 10575688 | Hand-held vacuum cleaner | Min Zhong, Yonghua Wang | 2020-03-03 |
| 10548441 | Vacuum cleaner | Yonghua Wang, Min Zhong | 2020-02-04 |
| 10531773 | Hand-held vacuum cleaner | Yonghua Wang, Min Zhong, Chaoyi Deng | 2020-01-14 |