Andreas Niegel

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Kornwestheim, DE

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Patents Grantslast 30 patents

Information Patent Grant
Spark plug for an internal combustion engine
- Patent number 6,559,578
- Issue date May 6, 2003
- Robert Bosch GmbH
- Werner Herden
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark plug for internal combustion engine
- Patent number 5,952,770
- Issue date Sep 14, 1999
- Robert Bosch GmbH
- Roland Mueller
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Spark plug for internal combustion engines
- Patent number 5,550,424
- Issue date Aug 27, 1996
- Robert Bosch GmbH
- Irene Jennrich
- H01 - BASIC ELECTRIC ELEMENTS