Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11731922 | Method for separating aromatic hydrocarbon using extractive distillation | Longsheng Tian, Ming Zhao, Siliang GAO, Nan Yang, Zhifeng Bian +1 more | 2023-08-22 |
| 11465953 | Method for purification of a solvent for separation of styrene by extractive distillation and for separation of styrene | Longsheng Tian, Ming Zhao, Siliang GAO, Nan Yang, Siyuan QIE +1 more | 2022-10-11 |
| 7078580 | Process for separating aromatics by extractive distillation and a composite solvent used therein | Longsheng Tian, Ming Zhao, Yunming Zhang, Zhifeng Bian, Huixia Sun +1 more | 2006-07-18 |