Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8899007 | Open multi-strand cord | Zhichao Cheng, Pengfei Wang | 2014-12-02 |
| 8407977 | Oval steel cord with oval wires | Zhichao Cheng, Hongzhen Zhu, Hao Zhou, Junhua Kan | 2013-04-02 |