Christophe Deffontaines

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Paris, FR

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Patents Grantslast 30 patents

Information Patent Grant
Multiplexed control active matrix display screen
- Patent number 5,684,500
- Issue date Nov 4, 1997
- France Telecom
- Fran.cedilla.ois Morin
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Transflective colour filter, and a method of manufacturing such a f...
- Patent number 5,570,240
- Issue date Oct 29, 1996
- Societe d'Applications Generales d'Electricite et Mecanique-Sagem
- Christophe Deffontaines
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Color matrix display unit with double pixel area for red and blue p...
- Patent number 5,461,503
- Issue date Oct 24, 1995
- Societe d'Applications Generales d'Electricite et de Mecanique Sagem
- Christophe Deffontaines
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
Information Patent Grant
Active matrix liquid crystal display device with interdigitated cou...
- Patent number 5,448,385
- Issue date Sep 5, 1995
- Societe d'Applications Generales d'Electricite et de Mecanique Sagem
- Christophe Deffontaines
- G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS