Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10906721 | Vacuum preservation device | Zhicheng Liu, TongSheng Tao, Huajun Yu | 2021-02-02 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10906721 | Vacuum preservation device | Zhicheng Liu, TongSheng Tao, Huajun Yu | 2021-02-02 |