Issued Patents 2020
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10797630 | Method of modulating cascaded three-phase VFD | Kai Chen, Wenjiang Zhao, Yongqiang Lang | 2020-10-06 |
| 10574134 | Three-phase frequency converter, and dead zone compensation circuit and dead zone compensation method for the same | Wei Sun, Wenjiang Zhao, Yongqiang Lang | 2020-02-25 |