Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7078580 | Process for separating aromatics by extractive distillation and a composite solvent used therein | Longsheng Tian, Wencheng Tang, Ming Zhao, Zhifeng Bian, Huixia Sun +1 more | 2006-07-18 |