Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11311705 | Medical pressurization control device | Weiqin QIU, Changqing Li | 2022-04-26 |
| 11224440 | Release device for medical tissue clips | Derong Leng, Changqing Li, Weiqin QIU, Ran Song | 2022-01-18 |