Wolfgang Siefert

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Mainz, DE

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Patents Grantslast 30 patents

Information Patent Grant
Method for the manufacture of a light wave guide
- Patent number 4,859,222
- Issue date Aug 22, 1989
- Schott Glaswerke
- Hartmut Bauch
- G02 - OPTICS
Information Patent Grant
Process for producing a planar optical waveguide
- Patent number 4,851,025
- Issue date Jul 25, 1989
- Schott Glaswerke
- Wolfgang Siefert
- G02 - OPTICS
Information Patent Grant
Method for making planar lightwave guides
- Patent number 4,765,819
- Issue date Aug 23, 1988
- Schott Glaswerke
- Ralf T. Kersten
- G02 - OPTICS
Information Patent Grant
Methods of making planar lightwave guides
- Patent number 4,756,734
- Issue date Jul 12, 1988
- Schott Glaswerke
- Ralf T. Kersten
- G02 - OPTICS