Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9222315 | Rotary lock block type drilling riser connector | Caihu Chen, Dingya Wang, Ping-hua Deng, Jinquan Wang, Aili Li +1 more | 2015-12-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9222315 | Rotary lock block type drilling riser connector | Caihu Chen, Dingya Wang, Ping-hua Deng, Jinquan Wang, Aili Li +1 more | 2015-12-29 |