Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12373873 | Systems and methods for checking and confirming the purchase of merchandise items | Zhichun Xiao, Lingfeng Zhang, Yao Liu, Jon Hammer, Yutao Tang +10 more | 2025-07-29 |
| 12002080 | Systems and methods for checking and confirming the purchase of merchandise items | Zhichun Xiao, Lingfeng Zhang, Yao Liu, Jon Hammer, Yutao Tang +10 more | 2024-06-04 |
| 6617278 | Catalyst system for use in ethylene polymerization and copolymerization and process for preparing the same | Maozhu Jin, 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 | Maozhu Jin, Yuexiang Liu, Renqi Peng, Huibo Shen, Meizhen Yin +4 more | 2002-05-14 |