Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5708573 | Varactor controlled fixed frequency VHF DC-DC converter | David M. Lusher, William Hwang | 1998-01-13 |
| 5673188 | Zero voltage switching series resonant half bridge VHF inverter | David M. Lusher, William Hwang | 1997-09-30 |
| 5668715 | Multiple output, zero voltage switching, series resonant VHF inverter | David M. Lusher, William Hwang | 1997-09-16 |