Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10041298 | Detachable combined-type drive key for rotary drilling rig power head | Xiaoliang Li, Ju Luo, Zhonghai Zhang, Jiguang Zhang, Caifeng WEI | 2018-08-07 |
| 9775057 | Service switching method, device and system for local communication network | Dejuan Feng, Hui Chen, Guohe Liang | 2017-09-26 |
| 9742583 | Method of data retransmission in collaborative service transmission and access network gateway thereof | Aifang Sun, Chong Gao, Zhihao Ling, Zhifei Zhang, Xuewen Qi +2 more | 2017-08-22 |