Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11446633 | Method for treating pollutants | Warren CHUNG, Xuebing LI, Pei Yu, Mengtao CUI, Quan Shi +3 more | 2022-09-20 |
| 9925532 | Method of processing heavy oils and residua | Qiang Wei, Chunming Xu, Zhiming Xu, Xuewen Sun, Keng H. Chung | 2018-03-27 |
| 9290706 | Integrated process for upgrading heavy oil | Xuewen Sun, Zhiming Xu, Chunming Xu, Keng H. Chung | 2016-03-22 |
| 7597794 | Deep separation method and processing system for the separation of heavy oil through granulation of coupled post-extraction asphalt residue | Chunming Xu, Ren′an Wang, Zhiming Xu, Xuewen Sun, Keng H. Chung | 2009-10-06 |