Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11141525 | Ear-cover structure and ear irrigation device | Yonggui Zhang | 2021-10-12 |
| D914870 | Enema bucket device | Yonggui Zhang | 2021-03-30 |
| D910838 | Enema bag | Yonggui Zhang | 2021-02-16 |