David Duperray

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Le Mans, FR

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Patents Grantslast 30 patents

Information Patent Grant
Portable communication device arranged for state-dependently contro...
- Patent number 6,850,785
- Issue date Feb 1, 2005
- Koninklijke Philips Electronics N.V.
- Lukas Leyten
- H01 - BASIC ELECTRIC ELEMENTS
Information Patent Grant
Radio transmission apparatus comprising a retractable antenna and a...
- Patent number 5,900,839
- Issue date May 4, 1999
- U.S. Philips Corporation
- David Duperray
- H01 - BASIC ELECTRIC ELEMENTS