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Ralf Seedorf
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Berlin, DE
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Patents Grants
last 30 patents
Information
Patent Grant
Short-arc high-pressure discharge lamp for digital projection techn...
Patent number
6,573,657
Issue date
Jun 3, 2003
Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
Thomas Mehr
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Metal-halide discharge lamp for photooptical purposes
Patent number
5,691,601
Issue date
Nov 25, 1997
Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen mbH
Anna-Maria Frey
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Metal halide gas discharge lamp for projection purposes
Patent number
5,689,154
Issue date
Nov 18, 1997
Patent-Treuhand-Gesellschaft fur elektrische Gluhlampen mbH
Clemens Barthelmes
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
High-pressure discharge lamp, particularly low-rated power discharg...
Patent number
5,629,585
Issue date
May 13, 1997
Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen mbH
Bernhard Altmann
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electric lamp subject to high operating temperatures
Patent number
5,493,168
Issue date
Feb 20, 1996
Patent-Treuhand-Gesellschaft F. Elektrische Gluehlampen mbH
Ralf Seedorf
H01 - BASIC ELECTRIC ELEMENTS
Patents Applications
last 30 patents
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Patent Application
Short-arc high-pressure discharge lamp for digital projection techn...
Publication number
20020074943
Publication date
Jun 20, 2002
Thomas Mehr
H01 - BASIC ELECTRIC ELEMENTS