Issued Patents 2019
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10502489 | Coal slurry preheater and coal gasification system and method using the same | Liang Yu, Xijing Bi, Jing Lv | 2019-12-10 |
| 10287522 | System and method for preparing coal water slurry | Xijing Bi, Dejia Wang, Raul Eduardo Ayala | 2019-05-14 |