Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9689128 | Artificial dam of distributed coal mine underground reservoir and its constructing method | Quansheng Li, Sushe Chen, Zhiguo Cao | 2017-06-27 |
| 9581023 | Opencast coal mine underground water reservoir | — | 2017-02-28 |