Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9657029 | Method of preparing oxymorphone | — | 2017-05-23 |
| 6562985 | Geminal-dinitro-1-5 diazocine derivatives | Robert D. Chapman, Theodore Axenrod, Xiao Guan, Lida Qi | 2003-05-13 |
| 6417355 | Geminal-dinitro-1-5 diazocine derivatives | Robert D. Chapman, Theodore Axenrod, Xiao Guan, Lida Qi | 2002-07-09 |
| 5654353 | Biodegradable composition, a process for preparing the same and the use thereof | Yunzheng Li, Haojun Zhu, Anhua Li | 1997-08-05 |