David Harrison

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Strasbourg, FR

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Patents Grantslast 30 patents

Information Patent Grant
Lenses with a variable refraction index
- Patent number 5,825,554
- Issue date Oct 20, 1998
- Thomson Consumer Electronics, S.A.
- Gerhard Maier
- G02 - OPTICS
Information Patent Grant
Radiowave antenna system
- Patent number 5,625,368
- Issue date Apr 29, 1997
- Thomson Consumer Electronics, S.A.
- Christopher Howson
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Method for fabricating a lens having a variable refractive index
- Patent number 5,421,848
- Issue date Jun 6, 1995
- Thomson Consumer Electronics, S.A.
- Gerhard Maier
- H01 - BASIC ELECTRIC ELEMENTS