Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11209332 | Pressure calibration apparatus and pressure instrument calibration information processing method | — | 2021-12-28 |
| 11156517 | Method and device for detecting switching value of pressure switch | Chunying Zhang | 2021-10-26 |
| 10908178 | Arbitrary-shaped fabricated test block for high- steep slope rolling stone test | Zhixiang Yu, Hu Xu, Linxu Liao, Xin QI, Lei Zhao | 2021-02-02 |