Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11181633 | Loaded-to-frame detection equipment and method for backfill grouting of shield tunnel | Xiongyao Xie, Yunxiang Zhou, Hui Qin, Yifan Chen | 2021-11-23 |
| 11007110 | Air pressure massager | Dan Zhou | 2021-05-18 |