Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6617278 | Catalyst system for use in ethylene polymerization and copolymerization and process for preparing the same | Yijing Sun, Yi-Feng Wang, Rengi Peng, Baolan Zhu, Zhaowen Ma | 2003-09-09 |
| 6387839 | Compound catalyst system for synthesizing polyethylenes or copolymers of ethylene having bimodal or broad molecular weight distributions, process for preparing the same and use of the same | Yuexiang Liu, Renqi Peng, Huibo Shen, Meizhen Yin, Zhaowen Ma +4 more | 2002-05-14 |