Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7677335 | Tools and technology of radical and level drilling/well completion under ultra-short radius | Xi Cao, Caoxu Zhang | 2010-03-16 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7677335 | Tools and technology of radical and level drilling/well completion under ultra-short radius | Xi Cao, Caoxu Zhang | 2010-03-16 |