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MUNCHEN, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Regulated rectifier d.c. power supply
Patent number
4,792,887
Issue date
Dec 20, 1988
Patent-Treuhand-Gesellschaft
Franz Bernitz
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Halogen incandescent lamp and socket combination, particularly for...
Patent number
4,595,859
Issue date
Jun 17, 1986
Patent-Treuhand-Gesellschaft
Hermann Steiner
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High-pressure electric discharge lamp with interfitting socket and...
Patent number
4,533,851
Issue date
Aug 6, 1985
Patent-Treuhand-Gesellschaft
Werner Block
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Adjustable direct and bounce photoflash unit
Patent number
4,233,648
Issue date
Nov 11, 1980
Patent-Treuhand-Gesellschaft
Udo M. Geissler
G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
Information
Patent Grant
High-pressure mercury-vapor discharge ultraviolet radiant energy lamp
Patent number
4,155,025
Issue date
May 15, 1979
Patent-Treuhand-Gesellschaft
Alexander Dobrusskin
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Patents Applications
last 30 patents
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Patent Application
Light Bulb Comprising an Illumination Body, Which Contains a Metal...
Publication number
20080122355
Publication date
May 29, 2008
PATENT-TREUHAND-GESELLSCHAFT
Axel Bunk
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Double-sided sealed electric lamp and method for production thereof
Publication number
20070001576
Publication date
Jan 4, 2007
PATENT-TREUHAND-GESELLSCHAFT
Jens Benedix
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Application
Circuit arrangement for operating at least one light source
Publication number
20060061297
Publication date
Mar 23, 2006
PATENT-TREUHAND-GESELLSCHAFT
Markus Heckmann
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Circuit with switch-off device for the operation of light sources
Publication number
20050275356
Publication date
Dec 15, 2005
PATENT-TREUHAND-GESELLSCHAFT
Marco Faccin
Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMA...
Information
Patent Application
Step-up converter having power factor correction
Publication number
20050083022
Publication date
Apr 21, 2005
PATENT-TREUHAND-GESELLSCHAFT
Alois Braun
G05 - CONTROLLING REGULATING
Information
Patent Application
Protection circuit for a fluorescent lamp
Publication number
20020114114
Publication date
Aug 22, 2002
PATENT-TREUHAND-GESELLSCHAFT
Harald Schmitt
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR