Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10851448 | High performance titanium connecting sealing ring for deep-sea oil drilling and production device and processing method | Zicheng Sun, Min Sun | 2020-12-01 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10851448 | High performance titanium connecting sealing ring for deep-sea oil drilling and production device and processing method | Zicheng Sun, Min Sun | 2020-12-01 |