Walter Pammer

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Patents Grantslast 30 patents

Information Patent Grant
Method and apparatus for protecting transistors
- Patent number 9,000,830
- Issue date Apr 7, 2015
- Fronius International GmbH
- Jügen Pirchenfellner
- H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information Patent Grant
Method and circuit for contactless ignition of a welding arc with h...
- Patent number 7,638,734
- Issue date Dec 29, 2009
- Fronius International GmbH
- Andreas Prinz
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information Patent Grant
Voltage switch-over device
- Patent number 6,549,441
- Issue date Apr 15, 2003
- Fronius Schweissmaschinen Produktion GmbH & Co, KG
- Hubert Aigner
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR

Patents Applicationslast 30 patents

Information Patent Application
METHOD AND APPARATUS FOR PROTECTING TRANSISTORS
- Publication number 20120032729
- Publication date Feb 9, 2012
- FRONIUS INTERNATIONAL GMBH
- Jürgen Pirchenfellner
- H03 - BASIC ELECTRONIC CIRCUITRY
Information Patent Application
Method and circuit for contactless ignition of a welding arc with h...
- Publication number 20070102405
- Publication date May 10, 2007
- Andreas Prinz
- B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR