Issued Patents 2020
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10787906 | Roadway forming method by expanding excavating and filling gangue paste in thick coal seam | Zhongping Guo, Yong Jian, Huiqiang Duan, Hengze Yang, Wenwu Xie | 2020-09-29 |
| 10619225 | Detoxification treatment method for extracting and recycling chromium from hexavalent chromium-containing residues | Zhang Lin, Xueming Liu, Wencong Rong | 2020-04-14 |
| 10569315 | Treatment method for resource recycling of hexavalent chromium-containing residues | Zhang Lin, Xueming Liu, Wencong Rong | 2020-02-25 |