Gerd Kummerow

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Berlin, DE

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Patents Grantslast 30 patents

Information Patent Grant
System for monitoring the operating condition of a switch to preven...
- Patent number 4,670,812
- Issue date Jun 2, 1987
- Siemens Aktiengesellschaft
- Rudolf Doerfler
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Power drive for electric switchgear in which driving power is elast...
- Patent number 4,468,977
- Issue date Sep 4, 1984
- Siemens Aktiengesellschaft
- Gerd Kummerow
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Arcing chamber with perforated plates of sieve-like ceramics
- Patent number 4,254,314
- Issue date Mar 3, 1981
- Siemens Aktiengesellschaft
- Gerd Kummerow
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Low voltage circuit breaker having a two part insulating housing
- Patent number 4,206,335
- Issue date Jun 3, 1980
- Siemens Aktiengesellschaft
- Gerd Kummerow
- H01 - BASIC ELECTRIC ELEMENTS