Ralf Graf

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Mannheim, DE

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Patents Grantslast 30 patents

Information Patent Grant
Device for connecting a circuit breaker
- Patent number 9,633,756
- Issue date Apr 25, 2017
- ABB AG
- Ralf Graf
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Diagnosis and maintenance device for a switchgear assembly and corr...
- Patent number 8,994,543
- Issue date Mar 31, 2015
- ABB AG
- Hans-Peter Merkel
- G05 - CONTROLLING REGULATING
Information Patent Grant
Device for measuring gas or air temperature in a casing box
- Patent number 8,262,285
- Issue date Sep 11, 2012
- ABB AG
- Rudiger Kratschmar
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER

Patents Applicationslast 30 patents

Information Patent Application
DEVICE FOR CONNECTING A CIRCUIT BREAKER
- Publication number 20130240238
- Publication date Sep 19, 2013
- ABB AG
- Ralf GRAF
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
DIAGNOSIS AND MAINTENANCE DEVICE FOR A SWITCHGEAR ASSEMBLY AND CORR...
- Publication number 20120262300
- Publication date Oct 18, 2012
- ABB AG
- Hans-Peter MERKEL
- G05 - CONTROLLING REGULATING
Information Patent Application
DEVICE FOR MEASURING GAS OR AIR TEMPERATURE IN A CASING BOX
- Publication number 20090097190
- Publication date Apr 16, 2009
- ABB AG
- Rudiger Kratschmar
- G06 - COMPUTING CALCULATING COUNTING