Issued Patents All Time
Showing 1–11 of 11 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8818839 | Online marketing, monitoring and control for merchants | Adam Leff, Phil Dawley, Mike Ferro | 2014-08-26 |
| 6181076 | Apparatus and method for operating a high intensity gas discharge lamp ballast | Grigoriy A. Trestman | 2001-01-30 |
| 4613796 | Single transistor oscillator ballast circuit | — | 1986-09-23 |
| 4532456 | Output circuit for an electronic ballast system | William C. Knoll | 1985-07-30 |
| 4525649 | Drive scheme for a plurality of flourescent lamps | William C. Knoll | 1985-06-25 |
| 4441054 | Stabilized dimming circuit for lamp ballasts | — | 1984-04-03 |
| 4437040 | Method of effecting stabilized dimming of fluorescent lamps | — | 1984-03-13 |
| 4396866 | Lamp filament drive scheme providing for control of filament voltages by use of lamp current in solid state ballasts | William C. Knoll | 1983-08-02 |
| 4392085 | Direct drive ballast with delayed starting circuit | William C. Knoll | 1983-07-05 |
| 4382212 | One lamp out detect shutdown technique for high frequency, solid state fluorescent lamp ballasts | — | 1983-05-03 |
| 4353010 | Transistor drive scheme for fluorscent lamp ballast | William C. Knoll | 1982-10-05 |