Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6965212 | Method and apparatus for field weakening control in an AC motor drive system | Jack Ma, George Zhou | 2005-11-15 |
| 6850426 | Synchronous and bi-directional variable frequency power conversion systems | Hassan Ali Kojori, Jack Ma, George Zhou | 2005-02-01 |