Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10941623 | Apparatus and method for cleaning rock debris when deep-water surface drilling is done | Jin Yang, Qishuai Yin | 2021-03-09 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10941623 | Apparatus and method for cleaning rock debris when deep-water surface drilling is done | Jin Yang, Qishuai Yin | 2021-03-09 |