Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8689727 | Anti-oxidation spray methods and spray equipment for steel billets | Jianping Qiu, Zhihai Wei, Mingzhi Zhu, Meng Xu, Zhiqian Jia +2 more | 2014-04-08 |
| 7494692 | Antioxidation coating for steel and antioxidation method using the same | Shufeng Ye, Lianqi Wei, Yusheng Xie, Yunfa Chen, Jianping Qiu +2 more | 2009-02-24 |
| 6663077 | Sucker structure | — | 2003-12-16 |
| 6626615 | Chuck for chucking a small bit and table drill with the same | — | 2003-09-30 |