with built-in device

Industry

CPC
H01K9/06

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Parent Industries

HELECTRICITY H01Electric elements H01KELECTRIC INCANDESCENT LAMPS H01K9/00Lamps having two or more incandescent bodies separately heated

Current Industry

H01K9/06with built-in device

Industries

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Patents Grantslast 30 patents

Information Patent Grant
Multiple, sequential filament lamp
- Patent number 6,583,536
- Issue date Jun 24, 2003
- James W Gibboney
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method and a device for replacing incandescent filaments, and a lam...
- Patent number 5,003,224
- Issue date Mar 26, 1991
- Jorma Hiljanen
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Long life incandescent lamp
- Patent number 4,742,273
- Issue date May 3, 1988
- Herbert E. Goldberg
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Multifilament bulb with filament switching device
- Patent number 4,580,079
- Issue date Apr 1, 1986
- Ronald Koo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Filament switching device
- Patent number 4,447,760
- Issue date May 8, 1984
- Ronald Koo
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Multiple filament electric lamp
- Patent number 4,287,452
- Issue date Sep 1, 1981
- Leslie U. Fernandez
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
2862147
- Patent number 2,862,147
- Issue date Nov 25, 1958
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
2049338
- Patent number 2,049,338
- Issue date Jul 28, 1936
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
1946570
- Patent number 1,946,570
- Issue date Feb 13, 1934
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
1760667
- Patent number 1,760,667
- Issue date May 27, 1930
- H01 - BASIC ELECTRIC ELEMENTS

with built-in device

Industry

Parent Industries

Current Industry

Patents Grantslast 30 patents

Multiple, sequential filament lamp

Method and a device for replacing incandescent filaments, and a lam...

Long life incandescent lamp

Multifilament bulb with filament switching device

Filament switching device

Multiple filament electric lamp

2862147

2049338

1946570

1760667

Patents Applicationslast 30 patents