| Patents for H01K 9 - Lamps having two or more incandescent bodies separately heated (790) |
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| 07/20/1988 | CN87201533U 二次灯泡 Secondary bulb |
| 06/29/1988 | CN87201966U Long time-delay light bulb |
| 06/21/1988 | US4752710 Electric lamp with insulating base providing improved wire retention |
| 05/04/1988 | CN87209926U Longevity lamp |
| 05/03/1988 | US4742273 Long life incandescent lamp |
| 04/13/1988 | EP0263160A1 Head lamp, in particular headlight for cars, provided with several filaments adapted to emit beams of white and/or coloured light to be used as sealed beam light and foglight |
| 02/24/1988 | CN86204360U Longeval incandescent lamp with protecting circuit |
| 02/10/1988 | CN86207900U Multi-filament bulb regulating light by rotary clip |
| 01/13/1988 | CN87102529A Twilight lamp |
| 01/06/1988 | CN87201457U Long life brightness adjustable bulb |
| 12/30/1987 | CN87200652U New type superpressure multifilament bulb |
| 12/26/1987 | CN87200191U Electric bulb with multigroup of parallel filaments |
| 12/01/1987 | US4710676 For use in a photocopier |
| 11/25/1987 | CN87206581U Long life bulb |
| 10/31/1987 | CN86210879U Brightness variable lamp with multi-filaments |
| 10/31/1987 | CN86210332U Double filament bulb with bayonet fitting |
| 10/22/1987 | WO1987006325A1 Head lamp, in particular headlight for cars, provided with several filaments adapted to emit beams of white and/or coloured light to be used as sealed beam light and foglight |
| 09/23/1987 | CN86210938U Durable brightness-regulatable incandescent lamp bulb |
| 08/11/1987 | US4686410 Incandescent lamp having a reflecting screen and tongue |
| 07/21/1987 | US4682072 Headlamp for vehicle |
| 06/17/1987 | CN85205625U Long-life lamp |
| 05/20/1987 | EP0222553A2 Tungsten-Halogen lamp |
| 05/05/1987 | US4663558 Incandescent lamp bulb assembly |
| 04/01/1987 | CN86206177U Universal longlife incandescent lamp with two filaments |
| 03/31/1987 | US4654560 Three (3)-way lamp having a tungsten halogen inner envelope |
| 03/11/1987 | EP0213495A2 Multi-level fuser lamp |
| 01/28/1987 | CN86202373U Lamps with can prolong service life |
| 01/28/1987 | CN85204718U Three filament incandescent lamp and lamp holder |
| 01/24/1987 | CN85101633A Electric incandescent lamp with reflecting screen |
| 12/02/1986 | US4626735 Incandescent lamp having two lead-in conductors sealed within one end and including expansion means |
| 10/14/1986 | CA1212713A1 Multiple filament lamp having wire grid to provide filament redundancy |
| 08/12/1986 | US4605877 Mounting structure for multi-filaments of an incandescent lamp |
| 08/05/1986 | US4604546 Incandescent lamp mount structure with shield for evaporation products |
| 07/29/1986 | US4603278 Electric lamp with insulating base |
| 07/01/1986 | US4598342 Low wattage double filament tungsten-halogen lamp |
| 05/14/1986 | CN85200879U Electric bulb having power regulation |
| 04/16/1986 | CN85202440U Dimming incanolescent lamp with double filaments and a regulating switch |
| 04/09/1986 | CN85201027U Durable lamp apparatus with changing light |
| 04/01/1986 | US4580199 Dual filament halogen cycle incandescent lamp for the use in motor vehicle headlamps, for instance in sealed beam headlamps |
| 04/01/1986 | US4580079 Multifilament bulb with filament switching device |
| 02/12/1986 | CN85201543U Double-filament high-low incandescent lamp with regulating switch |
| 02/05/1986 | EP0170326A1 Electrical incandescent lamp having a reflector screen |
| 01/15/1986 | EP0168016A2 Tungsten-halogen lamp including diffusing means as part thereof |
| 01/15/1986 | EP0168015A2 Low wattage double filament tungsten-halogen lamp |
| 01/07/1986 | US4563617 Flat panel television/display |
| 12/20/1985 | CN85200474U Bulb with two tungsten filaments and three contacts, and holder thereof |
| 12/03/1985 | US4556822 Mounting structure and related method both for a multi-filament incandescent lamp |
| 11/27/1985 | EP0162673A2 Improvements in tungsten halogen incandescent lamps |
| 11/12/1985 | US4553066 Multiple filament lamp having wire grid to provide filament redundancy |
| 09/24/1985 | CA1194086A1 Dual length copier lamp |
| 09/24/1985 | CA1194084A1 Two-filament lamp for automobile headlight |
| 08/21/1985 | EP0151806A2 Electric lamp with insulating base |
| 07/16/1985 | US4529908 Electric incandescent lamp for a motor-car |
| 01/15/1985 | CA1181121A1 Electric incandescent lamp for a motor-car |
| 01/08/1985 | US4492895 Arc resistant halogen headlamp and wiring scheme therefor |
| 10/30/1984 | US4480296 Two-filament lamp for automobile headlight |
| 05/08/1984 | US4447760 Filament switching device |
| 04/10/1984 | US4442374 Dual length copier lamp |
| 01/25/1984 | EP0098905A1 Halogen incandescent lamps and associated projectors |
| 10/25/1983 | CA1155902A1 Electric lamp/reflector unit |
| 09/21/1983 | EP0089176A2 Tubular incandescent lamp |
| 07/06/1983 | EP0082992A2 Two-filament lamp for automobile headlight |
| 04/27/1983 | EP0077584A2 Electric incandescent lamp with two filaments for an automotive vehicle |
| 01/18/1983 | CA1139823A1 Tungsten halogen lamp for headlights |
| 10/26/1982 | CA1134426A1 Electric lamp unit, particularly sealed-beam vehicle headlight unit |
| 06/08/1982 | CA1125351A1 Tungsten halogen capsule for headlight |
| 05/11/1982 | US4329614 Sealed-beam headlight |
| 11/03/1981 | CA1111811A1 Lamp/reflector unit |
| 11/03/1981 | CA1111810A1 Lamp/reflector unit |
| 09/01/1981 | US4287452 Multiple filament electric lamp |
| 08/18/1981 | US4285032 Tubular incandescent lamp |
| 04/28/1981 | US4264840 Lamp/reflector unit |
| 01/06/1981 | US4243910 Filament support assembly for display device |
| 04/01/1980 | CA1074826A1 Seal |
| 03/25/1980 | US4195245 Sealed beam lamp for automobile |
| 12/25/1979 | US4180755 Sealed beam lamp including filament locating means |
| 12/18/1979 | US4179637 Incandescent light bulb with multiple filaments providing multiple lives |
| 10/09/1979 | CA1064089A1 Rectangular headlamp filament shield |
| 08/28/1979 | US4166232 Filament lead-in support for tungsten halogen capsule for headlight |
| 08/21/1979 | US4165085 Foamed plastic lubricating seal |
| 02/20/1979 | US4140939 Tungsten halogen lamp for headlights |
| 11/14/1978 | US4125890 Parabolic reflector including filament locating means |
| 03/21/1978 | US4080548 Lighting system having dimming capabilities |
| 06/14/1977 | US4029985 Rectangular headlamp filament shield |
| 03/15/1977 | US4011642 Method for manufacturing a sealed beamed headlight |
| 09/28/1976 | US3983447 Switch and dual lamp and switch combination |
| 09/07/1976 | US3979622 Headlight and incandescent lamp for anti-dazzle beam |
| 07/06/1976 | US3968395 Two filament electric bulb traffic light |
| 06/08/1976 | US3962596 Filament shields |
| 05/11/1976 | US3956713 Astable multivibrator having adjustable pulse width at constant frequency |