Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6713539 | Storage-stable modified asphalt composition and its preparation process | Shuhua Guo, Weiqi Huang, Jun Long, Baichun Zhang, Yucheng She | 2004-03-30 |
| 6673234 | Combined process of low degree solvent deasphalting and delayed coking | Rui Li, Jun Long | 2004-01-06 |