|
| US3936696 | 27 Ago 1973 | 3 Feb 1976 | Lutron Electronics Co., Inc. | Dimming circuit with saturated semiconductor device |
| US4286195 | 5 Jul 1979 | 25 Ago 1981 | Vultron, Inc. | Dimmer circuit for fluorescent lamps |
| US4383202 | 22 Dic 1980 | 10 May 1983 | General Electric Company | Flashing florescent lamps |
| US4651060 | 13 Nov 1985 | 17 Mar 1987 | Electro Controls Inc. | Method and apparatus for dimming fluorescent lights |
| US4654562 | 21 Dic 1984 | 31 Mar 1987 | The Gerber Scientific Instrument Co. | Flashing lamp unit |
| US4739227 | 26 Sep 1986 | 19 Abr 1988 | General Electric Company | Fluorescent lamp dimming over large light output range |
| US5068577 | 19 Nov 1990 | 26 Nov 1991 | Integrated Systems Engineering, Inc. | Constant current drive system for fluorescent tubes |
| US5107183 | 24 Sep 1990 | 21 Abr 1992 | Minipilo Electric Co., Ltd. | Discharging method and small fluorescent lamp using the discharging method |
| US5150018 | 12 Ago 1991 | 22 Sep 1992 | North American Philips Corporation | Gas discharge lamp with grid and control circuits therefor |
| US6072284 | 20 Jul 1998 | 6 Jun 2000 | Duro-Test Corporation | Three-way compact fluorescent lamp ballast and lamp holder incorporating same |