Erik Kelderman

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Enschede, NL

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Patents Grantslast 30 patents

Information Patent Grant
Optically non-linear active waveguiding material comprising donor a...
- Patent number 5,486,559
- Issue date Jan 23, 1996
- Akzo Nobel N.V.
- Johannes F. J. Engbersen
- G02 - OPTICS
Information Patent Grant
Optically non-linear active waveguiding material comprising a dopan...
- Patent number 5,434,208
- Issue date Jul 18, 1995
- Akzo Nobel N.V.
- Jan G. Batelaan
- C07 - ORGANIC CHEMISTRY