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Patents Grants
last 30 patents
Information
Patent Grant
Current supply for luminescent diodes
Patent number
7,708,447
Issue date
May 4, 2010
Tridonic Optoelectronics GmbH
Felix Tobler
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Circuit arrangement for operating gas discharge lamps
Patent number
6,426,597
Issue date
Jul 30, 2002
Knobel AG Lichttechnische Komponenten
Urs Rast
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method for operating a ballast for discharge lamps
Patent number
5,563,477
Issue date
Oct 8, 1996
Knobel AG Lichttechnische Komponenten
Thomas Ribarich
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Driver circuit for discharge lamps
Patent number
5,550,433
Issue date
Aug 27, 1996
Knobel AG Lichttechnische Komponenten
Felix Tobler
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Electrical circuit for operating a fluorescent lamp and for measuri...
Patent number
5,504,399
Issue date
Apr 2, 1996
Knobel AG Lichttechnische Komponenten
Felix Tobler
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method and circuitry for igniting fluorescent lamps at a predetermi...
Patent number
5,455,486
Issue date
Oct 3, 1995
Knobel AG Lichttechnische Komponenten
Felix Tobler
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Device for protecting a ballast circuit from excess voltage
Patent number
5,451,845
Issue date
Sep 19, 1995
Knobel AG Lichttechnische Komponenten
Thomas Ribarich
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Patents Applications
last 30 patents
Information
Patent Application
CURRENT SUPPLY FOR LUMINESCENT DIODES
Publication number
20100213853
Publication date
Aug 26, 2010
Tridonic Optoelectronics GMBH
Felix Tobler
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Current supply for luminescent diodes
Publication number
20060284865
Publication date
Dec 21, 2006
Tridonic Optoelectronics GMBH
Felix Tobler
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Current supply for luminescent diodes
Publication number
20050218836
Publication date
Oct 6, 2005
Tridonic Optoelectronics GMBH
Felix Tobler
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
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