Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9745809 | Liner hanger top packer | Huian Yi, Shanyin Chen, Baisong Ding, Zhien Zan, Boren Li +4 more | 2017-08-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9745809 | Liner hanger top packer | Huian Yi, Shanyin Chen, Baisong Ding, Zhien Zan, Boren Li +4 more | 2017-08-29 |