Issued Patents 2022
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D956363 | Earmuff | Yonggui Zhang | 2022-06-28 |
| D956364 | Earmuff | Yonggui Zhang | 2022-06-28 |
| 11260163 | Anti-reflux nasal aspirator | Yonggui Zhang | 2022-03-01 |
| 11260166 | Anti-reflux tube-type enemator | Yonggui Zhang | 2022-03-01 |
| 11253641 | Anti-reflux enema bag with pulley restrictor | Yonggui Zhang | 2022-02-22 |