Steffen Koehler

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Regensburg, DE

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Patents Grantslast 30 patents

Information Patent Grant
Lens arrangement and LED display device
- Patent number 8,754,427
- Issue date Jun 17, 2014
- Osram Opto Semiconductors GmbH
- Stefan Groetsch
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Lens Arrangement and LED Display Device
- Publication number 20100038666
- Publication date Feb 18, 2010
- Stefan Groetsch
- G02 - OPTICS