Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9242836 | Apparatus and method for automatically adjusting the tension of a flexible guide rail | Guohua Cao, Zhencai Zhu, Renyuan Wu, Jiancong Qin, Hongqiao Kang +5 more | 2016-01-26 |
| 9156655 | Mining elevator traction cable connecting apparatus and measuring method therefor | Guohua Cao, Zhencai Zhu, Jiancong Qin, Hongqiao Kang, Guoan Chen +4 more | 2015-10-13 |