Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10694937 | Hand-held autonomous visual acuity measurement apparatus and visual acuity measuring method | Pei Xie, Qin Jiang, Xingtao Zhou, Qinmei Wang, Junwen Zeng +2 more | 2020-06-30 |