Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9151142 | Segmental flow control method and apparatus for a flow control filter string in an oil-gas well | Bailin Pei | 2015-10-06 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9151142 | Segmental flow control method and apparatus for a flow control filter string in an oil-gas well | Bailin Pei | 2015-10-06 |