Kay Steffen

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Eichstetten a.Kaiserstuhl, DE

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Patents Grantslast 30 patents

Information Patent Grant
Organic red electroluminescent chromophores, method for the product...
- Patent number 6,858,729
- Issue date Feb 22, 2005
- Siemens Aktiengesellschaft
- Horst Hartmann
- C07 - ORGANIC CHEMISTRY

Patents Applicationslast 30 patents

Information Patent Application
Organic red electroluminescent chromophores, method for the product...
- Publication number 20040116700
- Publication date Jun 17, 2004
- Horst Hartmann
- C07 - ORGANIC CHEMISTRY