| Patents for H05B 39 - Circuit arrangements or apparatus for operating incandescent light sources and not adapted to a particular application (6,420) |
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| 11/23/1982 | US4360783 Lamp power regulator |
| 11/16/1982 | US4359670 Lamp intensity control apparatus comprising preset means |
| 11/09/1982 | US4358714 Light dimming system for grounded-side control of discrete indicator lamps |
| 11/09/1982 | US4358713 Brightness control device for light emitting display of electronic meter |
| 11/02/1982 | US4357652 Light projector equipped with a low-voltage incandescent lamp and incorporating a relay |
| 10/20/1982 | EP0062730A1 A device for the control of the luminous flux from a main beam bulb in a motor vehicle |
| 10/06/1982 | EP0062004A1 A device permitting of economizing electric lighting energy |
| 09/28/1982 | US4352046 Non-tactile switch |
| 09/28/1982 | US4352045 Energy conservation system using current control |
| 09/21/1982 | US4350903 Electronic light switch |
| 08/31/1982 | US4347461 Incident illumination responsive light control |
| 08/31/1982 | US4346640 Decorative light flashing apparatus and acousto-electric transducer therefor |
| 08/24/1982 | US4346331 Feedback control system for applying AC power to ballasted lamps |
| 08/11/1982 | EP0057190A1 A feedback control system for applying ac power to ballasted lamps |
| 06/16/1982 | EP0053896A1 Light dimmer device |
| 06/10/1982 | WO1982001974A1 Light dimmer system for grounded-side control of discrete indicator lights |
| 06/08/1982 | US4334171 Light dimmer switch having remote load current switching |
| 02/23/1982 | US4317071 Computerized illumination system |
| 01/19/1982 | US4311955 Phase control device which compensates for input variations |
| 01/05/1982 | US4309639 Light modulator system and method |
| 12/29/1981 | CA1115338A1 Method and apparatus for operating radiant devices |
| 12/10/1981 | WO1981003596A1 A feedback control system for applying ac power to ballasted lamps |
| 12/08/1981 | US4305006 Electrical switch |
| 12/08/1981 | US4304645 Process for removing helium and other impurities from a mixture containing deuterium and tritium, and a deuterium/tritium mixture when purified in accordance with such a process |
| 10/07/1981 | EP0037315A1 Control device for variations in time of the intensity of a lighting installation |
| 10/06/1981 | US4293796 Traffic light dimming technique and circuitry |
| 10/06/1981 | US4293795 Solid state flasher relay |
| 09/15/1981 | US4289972 Touch control switch |
| 09/01/1981 | US4287468 Dimmer control system |
| 08/11/1981 | US4283659 Display system utilizing incandescent lamp multiplexing |
| 06/23/1981 | CA1103750A1 Three-way light dimmer switch |
| 06/16/1981 | US4273999 Equi-visibility lighting control system |
| 04/28/1981 | US4264831 Touch control switch |
| 03/31/1981 | US4259619 Three-way light dimmer switch |
| 03/24/1981 | US4258292 Flasher devices for lamps |
| 03/18/1981 | EP0025404A2 Short-circuiting element for series supply circuit |
| 02/24/1981 | US4253042 Alternating current lampchanger control circuit |
| 02/17/1981 | CA1095987A1 Long life incandescent switching system |
| 02/10/1981 | US4250432 Touch dimmer circuit |
| 01/27/1981 | US4247766 Demand illumination control apparatus |
| 01/20/1981 | US4246517 SCR lamp supply |
| 01/20/1981 | US4246494 Digital touch controlled dimmer switch |
| 12/09/1980 | US4238709 Head lamp control circuit |
| 12/02/1980 | US4237405 Method and apparatus for conserving energy |
| 11/25/1980 | US4236101 Light control system |
| 11/25/1980 | CA1090411A1 Dimmer control circuit |
| 11/11/1980 | US4233545 Automatic lighting control system |
| 10/28/1980 | US4230970 Method and apparatus for saving energy |
| 10/21/1980 | US4229680 Lamp life extender |
| 10/07/1980 | US4227119 Controlled lighting device |
| 09/09/1980 | US4222047 Lamp failure detection apparatus |
| 08/26/1980 | US4219761 Incandescent lamp dimmer providing control voltage IES square law compliance correction |
| 08/19/1980 | US4218637 Flasher circuit |
| 08/06/1980 | EP0014077A1 Continuous process for recycling deuterium/tritium from a fusion reactor for reuse in such a reactor |
| 07/15/1980 | US4213066 Solid state switch |
| 07/08/1980 | US4211959 Touch-control adapter for electric lamps |
| 07/01/1980 | US4210822 Touch control switch |
| 06/24/1980 | CA1080316A1 Warning light system |
| 06/03/1980 | USRE30296 Digital electronic dimmer |
| 05/13/1980 | US4203091 Sequentially actuated flashing light apparatus |
| 02/12/1980 | CA1071699A1 Control circuit for progressively varying illumination intensity of lamps |
| 11/14/1979 | EP0005311A1 Method and apparatus for regulating the power supplied to an electrical load |
| 10/09/1979 | CA1064101A1 Mass of current inrush limiters |
| 08/28/1979 | US4166236 Electric energy saving three-position combination switching device |
| 08/07/1979 | US4163923 Variable duty cycle lamp circuit |
| 06/27/1979 | EP0002622A2 Signal lamp with control circuit |
| 06/26/1979 | US4159442 Circuit for lighting like candlelight |
| 05/22/1979 | US4156166 Method and apparatus for saving energy |
| 05/16/1979 | EP0001950A1 A vehicle lighting system having an emergency circuit |
| 05/15/1979 | US4155032 Constant illumination apparatus |
| 05/01/1979 | US4152629 Lamp responsive to the human touch upon a living plant and control system therefor |
| 05/01/1979 | US4152608 Momentary contact light switch |
| 05/01/1979 | US4152607 Soft switch with rapid recovery circuit |
| 05/01/1979 | CA1053746A1 Incandescent lamp series string having protection against voltage surges |
| 05/01/1979 | CA1053745A1 Incandescent lamps having protection against voltage surges |
| 03/13/1979 | US4144477 Long life incandescent switching system |
| 02/27/1979 | US4142129 Lamp changing system for projectors |
| 02/22/1979 | WO1979000087A1 Touch control switch |
| 01/23/1979 | CA1046817A1 Process and apparatus for the manufacture of filled, closed containers |
| 01/16/1979 | US4135116 Constant illumination control system |
| 12/12/1978 | US4129804 Image display device commutator |
| 12/05/1978 | CA1043855A1 Methods and apparatus for controlling slide projectors |
| 11/14/1978 | US4125767 Photoelectric switch and dimmer control |
| 10/31/1978 | US4123671 Integrated driver circuit for display device |
| 10/03/1978 | US4118654 Automatic light intensity control for x-ray film viewer |
| 09/26/1978 | US4117376 Electric energy saving incandescent lamp socket combination switching device |
| 09/12/1978 | US4114071 Light modulator system |
| 09/05/1978 | US4112336 Lamp-starting device |
| 08/08/1978 | US4105927 Device for adjusting the level of brightness emitted by a lamp |
| 07/18/1978 | US4101811 Delayed extinction control |
| 07/18/1978 | US4101808 Lamp control circuit |
| 06/27/1978 | US4097782 Energy saving means reducing power used by lamps |
| 06/20/1978 | US4096414 Dimmer control circuit |
| 06/13/1978 | US4094124 Process and apparatus for the manufacture of filled, closed containers |
| 04/04/1978 | US4082961 Light switch with delayed turnoff |
| 03/21/1978 | US4080551 Circuit for plural lamp control in slide projectors or the like |
| 01/10/1978 | US4068149 Flasher circuit with low power drain |
| 12/20/1977 | US4064413 Relay adapter circuit for trailer lamps |
| 12/06/1977 | US4061911 Automatically switched spare lamp for a light projector |
| 11/15/1977 | US4058751 Light flasher circuit including GTO |