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Ulrich Marquardt
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Berlin, DE
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last 30 patents
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Patent Grant
Arrangement for controlling the switching of a power circuit breaker
Patent number
5,661,627
Issue date
Aug 26, 1997
Siemens Aktiengesellschaft
Marc Liebetruth
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Multi-pole low-voltage power switch with a switching shaft
Patent number
5,608,365
Issue date
Mar 4, 1997
Siemens Aktiengesellschaft
Ulrich Marquardt
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Vacuum switch with a current-loop assembly
Patent number
5,528,009
Issue date
Jun 18, 1996
Siemens Aktiengesellschaft
Ulrich Marquardt
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Arrangement for the logical interlinkage of mechanical signals
Patent number
4,788,453
Issue date
Nov 29, 1988
Siemens Aktiengesellschaft
Peter Bohnen
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Support structure which can be put together from sheet metal parts
Patent number
4,746,239
Issue date
May 24, 1988
Siemens Aktiengesellschaft
Ulrich Marquardt
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Circuit breaker with an actuating device and an energy accumulator
Patent number
4,746,778
Issue date
May 24, 1988
Siemens Aktiengesellschaft
Ulrich Marquardt
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Actuating device for a low-voltage circuit breaker with a ratchet w...
Patent number
4,742,200
Issue date
May 3, 1988
Siemens Aktienfesellschaft
Ulrich Marquardt
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Electric switchgear with a pull-out frame and a switching device th...
Patent number
4,703,137
Issue date
Oct 27, 1987
Siemens Aktiengesellschaft
Peter Bohnen
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Drive mechanism for a circuit breaker using eccentric member and di...
Patent number
4,655,098
Issue date
Apr 7, 1987
Siemens Aktiengesellschaft
Ulrich Marquardt
H01 - BASIC ELECTRIC ELEMENTS
Information
Patent Grant
Contact assembly having a current-dependent force increasing the co...
Patent number
4,636,762
Issue date
Jan 13, 1987
Siemens Aktiengesellschaft
Ulrich Marquardt
H01 - BASIC ELECTRIC ELEMENTS