Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11174591 | Green liquor clarification using sedimentation tank during white liquor preparation | Zicheng ZHANG, John Johnson, Sanchuan Guo | 2021-11-16 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11174591 | Green liquor clarification using sedimentation tank during white liquor preparation | Zicheng ZHANG, John Johnson, Sanchuan Guo | 2021-11-16 |