Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9840396 | Fall prevention brake buffering system for high-speed mine lift | Zhencai Zhu, Guohua Cao, Jiancong Qin, Guoan Chen, Weihong Peng +6 more | 2017-12-12 |
| 9840399 | Mining elevator carrying platform and carrying method | Guohua Cao, Zhencai Zhu, Jiancong Qin, Gongbo Zhou, Wei Li +4 more | 2017-12-12 |