Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9611423 | Petroleum fracturing proppant prepared from flyash and waste ceramic, and preparation method thereof | Shengjie Zhang, Yingjun Wang | 2017-04-04 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9611423 | Petroleum fracturing proppant prepared from flyash and waste ceramic, and preparation method thereof | Shengjie Zhang, Yingjun Wang | 2017-04-04 |