Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9964475 | Device and method using infrared radiation to observe coal rock fracture development process | Liqiang Ma, Hai Sun, Yayong Jiang, Jimeng Liang, Bin Yu | 2018-05-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9964475 | Device and method using infrared radiation to observe coal rock fracture development process | Liqiang Ma, Hai Sun, Yayong Jiang, Jimeng Liang, Bin Yu | 2018-05-08 |