Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9845257 | Vertical sewage treatment device and method | Liancheng Xiang, Yonghui Song, Junqi Wu, Siyu Wang, Jianping Li | 2017-12-19 |
| 9821331 | Automatic control element with uniformly-distributed stepping frequency | Xingye Zhu, Junping Liu, Shouqi Yuan, Hong Li, Jianyuan Jiang | 2017-11-21 |