Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11851405 | Method for preparing dialkyl carbonate by alcoholysis of urea | Yongcheng Lei, Yongzhong Lei, Qinghong Lv | 2023-12-26 |
| 6566456 | Method of preparing a hybrid of polyvinylimidazole and silica | Jeng-Cheng Yang, Yaw-Shun Hong, Te-Chuan Chang | 2003-05-20 |