Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11009246 | Systems and methods to detect dirt level of filters | Zhen Song, Qinpeng Wang | 2021-05-18 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11009246 | Systems and methods to detect dirt level of filters | Zhen Song, Qinpeng Wang | 2021-05-18 |