Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11428048 | Drilling system and method of submarine drilling rig | Junguo Cui, Lianpeng Mei, Han Pang, Jian Liu, Yongtian Kang +5 more | 2022-08-30 |
| 11299935 | Electric drilling tool suitable for ocean underwater drilling rig | Lianpeng Mei, Junguo Cui, Zhanpeng Liu, Liping Tan | 2022-04-12 |