Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10561865 | Smart mask, method, smart mask and apparatus for calculating pollutant absorption quantity | Tong Zhao, Huayijun Liu | 2020-02-18 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10561865 | Smart mask, method, smart mask and apparatus for calculating pollutant absorption quantity | Tong Zhao, Huayijun Liu | 2020-02-18 |