Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11255149 | Multifunctional directional wireline core drilling device | Hengchun Zhang, Wenshi Wang, Jia Yan, Jie Xu | 2022-02-22 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11255149 | Multifunctional directional wireline core drilling device | Hengchun Zhang, Wenshi Wang, Jia Yan, Jie Xu | 2022-02-22 |