Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10377622 | Refillable device | Yonghai Li, Zhongli Xu, Changzheng Dai | 2019-08-13 |
| 10280064 | Liquid injecting container, refillable liquid injecting system including same, and liquid injecting method using same | Yonghai Li, Zhongli Xu, Changzheng Dai | 2019-05-07 |