Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11155478 | Method for improving overflow clarity in production of coal | Kevin McDonald, Weiguo Cheng | 2021-10-26 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11155478 | Method for improving overflow clarity in production of coal | Kevin McDonald, Weiguo Cheng | 2021-10-26 |