Werner Frank

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Darmstadt, DE

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Patents Grantslast 30 patents

Information Patent Grant
Optical fiber transmission link having passive, directionally depen...
- Patent number 6,941,048
- Issue date Sep 6, 2005
- Deutsche Telekom AG
- Wolfgang Dultz
- G02 - OPTICS
Information Patent Grant
Method for producing gradient index refraction index profiles in po...
- Patent number 6,527,985
- Issue date Mar 4, 2003
- Deutsche Telekom AG
- Werner Frank
- G02 - OPTICS
Information Patent Grant
Optical branching element
- Patent number 5,923,801
- Issue date Jul 13, 1999
- Deutsche Telekom AG
- Werner Frank
- G02 - OPTICS

Patents Applicationslast 30 patents

Information Patent Application
Optical fiber transmission link having passive direction-dependent...
- Publication number 20030165297
- Publication date Sep 4, 2003
- Wolfgang Dultz
- G02 - OPTICS