Issued Patents 2016
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9297242 | Structure for gunpowder charge in multi-frac composite perforating device | Guoan Zhang, Jianlong Cheng | 2016-03-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9297242 | Structure for gunpowder charge in multi-frac composite perforating device | Guoan Zhang, Jianlong Cheng | 2016-03-29 |