Issued Patents 2021
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11066916 | Nozzle and injection device for use in underground coal gasification process and method for operating injection device | Zhenhua Min, Yuanli Wang | 2021-07-20 |
| 11021943 | Ignition device for underground coal gasification process, and applications thereof | Zhenhua Min, Yuanli Wang | 2021-06-01 |
| 10975678 | Production well apparatus for underground coal gasification and use thereof | Zhenhua Min, Yuanli Wang | 2021-04-13 |