Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9943877 | Dispelling pen | Yu Zhou, Chao Qian, Xuan Cheng, Yunfa Cao | 2018-04-17 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9943877 | Dispelling pen | Yu Zhou, Chao Qian, Xuan Cheng, Yunfa Cao | 2018-04-17 |