Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11366084 | Ultrasonic flaw detector test block | Changhua Chen, Li Zhang, Hong Mei Zhang, Zheng Dong, Qingyong Chen +2 more | 2022-06-21 |
| 9810667 | Heel test block | Changhua Chen, Li Zhang, Xiaolei Liu, Yao Ha, Zheng Dong +1 more | 2017-11-07 |