Issued Patents All Time
Showing 1–13 of 13 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9143030 | Passive power factor correction incorporating AC/DC conversion | Victor Chen, George W. Panagotacos | 2015-09-22 |
| 6639815 | Precision switching power amplifier comprising instantaneously interruptible power source | — | 2003-10-28 |
| 6385056 | Precision switching power amplifier and uninterruptible power system | — | 2002-05-07 |
| 6366474 | Switching power supplies incorporating power factor correction and/or switching at resonant transition | — | 2002-04-02 |
| 6362979 | Switching power amplifier and uninterruptible power system comprising DC/DC converter for providing sinusoidal output | — | 2002-03-26 |
| 6121756 | Charger | Robert W. Johnson, Steven R. Widener, Joseph C. Paulakonis | 2000-09-19 |
| 6011702 | Low noise forward/flyback switching power supply | — | 2000-01-04 |
| 5896280 | Frequency converter and improved UPS employing the same | Robert W. Johnson, Rune Lennart Jonsson | 1999-04-20 |
| 5892666 | Push-pull switching power supply having increased efficiency and incorporating power factor correction | — | 1999-04-06 |
| 5736841 | Switching power supply attaining sinusoidal input current and comprising series coupled 2-terminal switching block | — | 1998-04-07 |
| 5637988 | Switching power supply attaining sinusoidal input current | — | 1997-06-10 |
| 5382843 | One or two transistor logic with temperature compensation and minimized supply voltage | — | 1995-01-17 |
| 5146399 | Switching power apparatus having high factor and comprising pair of converter for obtaining fixed or variable output voltage | — | 1992-09-08 |