Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10801997 | Method and system of evaluating cement bonds through tubing | Jiajun Zhao, Qinshan Yang | 2020-10-13 |
| 10655457 | Apparatus and method of propagation and spatial location analysis by acoustic array for down-hole applications | Qinshan Yang | 2020-05-19 |