Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10445960 | Systems and methods for unlocking a lock | Wei Duan, Zhifeng Hu, Qizhong Hu, Wei ZHANG | 2019-10-15 |
| 10255740 | Systems and methods for unlocking a lock | Wei Duan, Zhifeng Hu, Qizhong Hu, Wei ZHANG | 2019-04-09 |