Issued Patents 2021
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D934568 | Toothbrush | Youran Wang, Guoqiang Liu, Yanmei Ji | 2021-11-02 |
| D929574 | Oral irrigator | Jiang Zhou, Yanmei Ji, Bo Zhang | 2021-08-31 |
| D925925 | Toothbrush | Youran Wang, Guoqiang Liu, Yanmei Ji | 2021-07-27 |
| 11023833 | Pro-active fuel and battery refilling for vehicles | Adi I. Botea | 2021-06-01 |