Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11428065 | Borehole wall resistance increasing apparatus for improving energy utilization rate of injection gas | Xinglong Chen, Zhidong Yang, Shanyan Zhang, Zemin Ji, Yulong Pu | 2022-08-30 |