Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8191058 | Computer processing system for realizing data upgrade and a data upgrading method | Hongfeng Chai, Rui Guo, Shuo He, Wenbin Hu | 2012-05-29 |
| 7617152 | Bankcard transaction exchange system | Hongfeng Chai, Huaiguang Shan, Rui Guo, Wenbin Hu, Jintan Wu +1 more | 2009-11-10 |