Issued Patents 2017
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9640981 | Frequency-conversion differential protection method for output transformer of static frequency converter system | Jun Chen, Quanrong Shen, Wei Yan, Huimin Wang, Huazhong Li | 2017-05-02 |