Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4861847 | Catalyst system for use in olefinic polymerization | Bingquan Mao, Aichun Yang, Ying Zheng, Zhulan Li | 1989-08-29 |
| 4784983 | Catalyst system for use in olefinic polymerization | Bingquan Mao, Aichun Yang, Ying Zheng, Zhulan Li | 1988-11-15 |