Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11162917 | Device for improving gas detection in photoionization detector | Chang Liu, Guangli Xie, Zhiguo Wang, Yang Zhang | 2021-11-02 |
| 10996197 | Collection surface for electrodes in photoionization detector | Qidao Lin, Guangli Xie, Zhanghua Wu | 2021-05-04 |
| 10969371 | Photoionization detector automated zero level calibration | Guangli Xie, Zhanghua Wu, Yaofu Gong | 2021-04-06 |
| 10942061 | Shielding for electrodes in photoionization detector | Yuzhong Wang, Qidao Lin, Guangli Xie, Zhanghua Wu | 2021-03-09 |