Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11041344 | Wireline coring recovery system of a seafloor drilling rig and method of using same | Yongping Jin, Xiaojun Huang | 2021-06-22 |
| 10947800 | Pressure-retaining cap screwing and unscrewing device for marine natural gas hydrate pressure-retaining rock-core barrel | Xiaojun Huang, Yongping Jin | 2021-03-16 |
| 10927606 | Sediment core-drilling process for submarine wire-line coring drill rig | Yongping Jin, Xiaojun Huang, Jialiang Wang | 2021-02-23 |