Ralf Hagedorn

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Holdorf, DE

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Patents Grantslast 30 patents

Information Patent Grant
Arrangement and method for avoiding stray currents in wind power pl...
- Patent number 9,112,384
- Issue date Aug 18, 2015
- AREVA Wind GmbH
- Ralf Hagedorn
- F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
Information Patent Grant
Emergency power supply device
- Patent number 8,952,661
- Issue date Feb 10, 2015
- SSB Wind Systems GmbH & Co. KG
- Ralf Hagedorn
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information Patent Grant
Rotor-blade pitch controlling drive for a wind turbine
- Patent number 8,933,652
- Issue date Jan 13, 2015
- SSB Wind Systems GmbH & Co. KG
- Ralf Hagedorn
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...

Patents Applicationslast 30 patents

Information Patent Application
Assembly For Fixing A Rotor Blade Of A Wind Power Plant
- Publication number 20140363289
- Publication date Dec 11, 2014
- Ralf Hagedorn
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information Patent Application
Arrangement and Method for Avoiding Stray Currents in Wind Power Pl...
- Publication number 20140183864
- Publication date Jul 3, 2014
- AREVA WIND GmbH
- Ralf Hagedorn
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Application
METHOD OF OPERATING A ROTOR BLADE ADJUSTMENT DRIVE
- Publication number 20120056429
- Publication date Mar 8, 2012
- SSB Wind Systems GmbH & Co. KG
- Ralf Hagedorn
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...
Information Patent Application
EMERGENCY POWER SUPPLY DEVICE
- Publication number 20120043760
- Publication date Feb 23, 2012
- SSB Wind Systems GmbH & Co. KG
- Ralf Hagedorn
- F05 - INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF...