David E. Rock

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Sylvania, OH, US

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Patents Grantslast 30 patents

Information Patent Grant
Ion source and metals used in making components thereof and method...
- Patent number 7,598,500
- Issue date Oct 6, 2009
- Guardian Industries Corp.
- Nestor P. Murphy
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Ion source including magnet and magnet yoke assembly
- Patent number 7,488,951
- Issue date Feb 10, 2009
- Guardian Industries Corp.
- Nestor P. Murphy
- H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

Information Patent Application
Ion source and metals used in making components thereof and method...
- Publication number 20080067400
- Publication date Mar 20, 2008
- Nestor P. Murphy
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Application
Ion source including magnet and magnet yoke assembly
- Publication number 20080048127
- Publication date Feb 28, 2008
- Guardian Industries Corp.,
- Nestor P. Murphy
- H01 - BASIC ELECTRIC ELEMENTS