Dieter Helmreich

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Burghausen, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method and device for nondestructive detection of crystal defects
- Patent number 6,362,487
- Issue date Mar 26, 2002
- Wacker Siltronic Gesellschaft fur Halbleitermaterialien AG
- Andreas Ehlert
- C30 - CRYSTAL GROWTH
Information Patent Grant
Process and apparatus for the cyclical manufacture of silicon shape...
- Patent number 4,769,107
- Issue date Sep 6, 1988
- Heliotronic Forschungs- und Entwicklungsgesellschaft fur Solarzellen-Grundsto...
- Dieter Helmreich
- C30 - CRYSTAL GROWTH
Information Patent Grant
Process for the manufacture of coarsely crystalline to monocrystall...
- Patent number 4,447,289
- Issue date May 8, 1984
- Heliotronic Forschungs- und Entwicklungsgesellschaft fur Solarzellen-Grundsto...
- Joachim Geissler
- C30 - CRYSTAL GROWTH
Information Patent Grant
Process for making solar cell base material
- Patent number 4,366,024
- Issue date Dec 28, 1982
- Heliotronic Forschungs- und Entwicklungsgesellschaft fur Solarzellen-Grundsto...
- Gerhard Ast
- C30 - CRYSTAL GROWTH
Information Patent Grant
Method for making silicon rods
- Patent number 4,312,700
- Issue date Jan 26, 1982
- Helictronic Forschungs- und Entwicklungs- Gesellschaft fur Solarzellen-Grunds...
- Dieter Helmreich
- C30 - CRYSTAL GROWTH