Alexander Steffens

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Langenfeld, DE

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Patents Grantslast 30 patents

Information Patent Grant
Vacuum interrupter chamber and contact arrangement for a vacuum cir...
- Patent number 7,906,742
- Issue date Mar 15, 2011
- ABB Research Ltd.
- Alexander Steffens
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Vacuum circuit breaker having a high current-carrying capacity
- Patent number 7,471,495
- Issue date Dec 30, 2008
- ABB Research Ltd.
- Alexander Steffens
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Vacuum Interrupter Chamber and Contact Arrangement for a Vacuum Cir...
- Publication number 20080067151
- Publication date Mar 20, 2008
- Alexander Steffens
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Vacuum circuit breaker having a high current-carrying capacity
- Publication number 20080000879
- Publication date Jan 3, 2008
- ABB Research Ltd.
- Alexander Steffens
- H01 - BASIC ELECTRIC ELEMENTS