Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11415120 | Waterproof emulsion pump with external spring | Maoyong Zhu, Yonglei Zhang, Jinkao Liang | 2022-08-16 |
| 11383257 | All-plastic self-locking pump | Maoyong Zhu, Yonglei Zhang, Jinkao Liang | 2022-07-12 |