Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6850426 | Synchronous and bi-directional variable frequency power conversion systems | Jack Ma, Zheng Wang, George Zhou | 2005-02-01 |
| 6744644 | Soft-start of DC link capacitors for power electronics and drive systems | — | 2004-06-01 |
| 6274851 | Electric arc furnace controller | Joseph A. Mulcahy, Dawit Tadesse, Janos Rajda | 2001-08-14 |
| 5991327 | Smart predictive line controller for AC and DC electric arc furnaces | — | 1999-11-23 |