Issued Patents All Time
Showing 1–22 of 22 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6166492 | Low loss, electronic ballast | — | 2000-12-26 |
| 6114816 | Lighting control system for discharge lamps | Isaac L. Flory, IV | 2000-09-05 |
| 5962988 | Multi-voltage ballast and dimming circuits for a lamp drive voltage transformation and ballasting system | Lily Lin | 1999-10-05 |
| 5825139 | Lamp driven voltage transformation and ballasting system | Lily Lin | 1998-10-20 |
| 5663612 | Apparatus for dimming discharge lamp having electromagnetic regulator with selectively tapped capacitance winding | — | 1997-09-02 |
| 5594308 | High intensity discharge lamp starting circuit with automatic disablement of starting pulses | Isaac L. Flory, IV | 1997-01-14 |
| 5321338 | Lamp starting circuit | Isaac L. Flory, IV | 1994-06-14 |
| 5309065 | Voltage doubler ballast system employing resonant combination tuned to between the second and third harmonic of the AC source | Yan Wang | 1994-05-03 |
| 5289084 | Lamp arrangement employing a resonant circuit formed from an autotransformer and a capacitor where the capacitor is switched out of the resonant circuit and into a power factor correcting circuit when the ignition of the lamp is sensed | Yan Wang | 1994-02-22 |
| 5272420 | Biasing system for reducing ion loss in lamps | — | 1993-12-21 |
| 5235256 | Biasing system for controlling chemical concentration in lamps | — | 1993-08-10 |
| 5216333 | Step-dimming magnetic regulator for discharge lamps | Isaac L. Flory, IV | 1993-06-01 |
| 5210471 | Controlled-current lamp starting ciruit | Isaac L. Flory, IV | 1993-05-11 |
| 5047694 | Lamp starting circuit | Isaac L. Flory, IV | 1991-09-10 |
| 5019751 | End-of-life lamp starter disabling circuit | Isaac L. Flory, IV | 1991-05-28 |
| 4891562 | Hybrid regulator-ballast circuit for high intensity discharge lamps | Paul J. Buckley, II | 1990-01-02 |
| 4890041 | High wattage HID lamp circuit | Paul E. Payne | 1989-12-26 |
| 4866347 | Compact fluorescent lamp circuit | Paul J. Buckley, II | 1989-09-12 |
| 4810936 | Failing lamp monitoring and deactivating circuit | Isaac L. Flory, IV | 1989-03-07 |
| 4763044 | Start, hot restart and operating lamp circuit | Isaac L. Flory, IV | 1988-08-09 |
| 4686424 | Emergency lighting circuits | Kerry G. Evans | 1987-08-11 |
| 4274033 | High-frequency lamp operating circuit | — | 1981-06-16 |