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Wolfram Sowa
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Munich, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Electronic ballast for operating at least one discharge lamp
Patent number
8,587,210
Issue date
Nov 19, 2013
Osram AG
Maximilian Gerber
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Circuit arrangement for conversion of an input AC voltage to a DC v...
Patent number
8,390,209
Issue date
Mar 5, 2013
OSRAM Gesellschaft mit beschraenkter Haftung
Harald Dellian
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Switch-off time regulation system for an inverter for driving a lamp
Patent number
8,054,003
Issue date
Nov 8, 2011
Osram AG
Wolfram Sowa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Control circuit for converters
Patent number
7,564,673
Issue date
Jul 21, 2009
OSRAM Gesellschaft mit beschraenkter Haftung
Oskar Schallmoser
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Circuit arrangement having a full bridge with switching load relief...
Patent number
7,394,207
Issue date
Jul 1, 2008
Patent-Treuhand-Gesellschaft für Glühlampen mbH
Felix Franck
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Converter circuit having class E converter modules
Patent number
7,274,578
Issue date
Sep 25, 2007
Patent-Treuhand-Gesellschaft fur Elektrisch Gluhlampen mbH
Reinhard Lecheler
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Information
Patent Grant
Ballast and method for operating a lamp
Patent number
6,768,271
Issue date
Jul 27, 2004
Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
Olaf Busse
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Device and method for preheating the coil electrodes of a fluoresce...
Patent number
6,747,418
Issue date
Jun 8, 2004
Patent-Treuhand-Gesellschaft fuer elektrische Gluehlampen mbH
Wolfram Sowa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Fluorescent lamp operating circuit, permitting dimming of the lamp
Patent number
5,493,182
Issue date
Feb 20, 1996
Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen mbH
Wolfram Sowa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Patents Applications
last 30 patents
Information
Patent Application
Electronic ballast for operating at least one discharge lamp
Publication number
20120112653
Publication date
May 10, 2012
OSRAM AG
Maximilian Gerber
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
CIRCUIT ARRANGEMENT FOR CONVERSION OF AN INPUT AC VOLTAGE TO A DC V...
Publication number
20100201285
Publication date
Aug 12, 2010
OSRAM Gesellschaft mit beschraenkter Haftung
Harald Dellian
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Switch-Off Time Regulation System for an Inverter for Driving a Lamp
Publication number
20090295299
Publication date
Dec 3, 2009
OSRAM Gesellschaft mit beschrankter Haftung
Wolfram Sowa
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Control Circuit for Converters
Publication number
20080151586
Publication date
Jun 26, 2008
PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCHE GLUHLAMPHEN MBH
Oskar Schallmoser
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Converter circuit having class E converter modules
Publication number
20060076903
Publication date
Apr 13, 2006
Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
Reinhard Lecheler
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Circuit arrangement having a full bridge with switching load relief...
Publication number
20060006819
Publication date
Jan 12, 2006
PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBH
Felix Franck
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Starting device for a high-pressure discharge lamp, and an illumina...
Publication number
20050184678
Publication date
Aug 25, 2005
Arnulf Rupp
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Operating device for gas discharge lamps
Publication number
20040012345
Publication date
Jan 22, 2004
PATENT-TREUHAND-GESELLSCHAFT FUR ELEKTRISCH GLUHLAMPEN MBH
Olaf Busse
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Ballast for a lamp and method for operating a ballast for a lamp
Publication number
20030137256
Publication date
Jul 24, 2003
Olaf Busse
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Device and method for preheating the coil electrodes of a fluoresce...
Publication number
20030052620
Publication date
Mar 20, 2003
Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
Wolfram Sowa
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR