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Andre Hamel
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Lannion, FR
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last 30 patents
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Patent Grant
Reconfigurable ring transmission network with multiplexing in wave...
Patent number
6,204,943
Issue date
Mar 20, 2001
France Telecom
André Hamel
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Surveillance system of a multi-wavelength ring network
Patent number
5,943,148
Issue date
Aug 24, 1999
France Telecom
Andre Hamel
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Reconfigurable device for insertion-extraction of wavelengths
Patent number
5,771,112
Issue date
Jun 23, 1998
France Telecom
Andre Hamel
G02 - OPTICS
Information
Patent Grant
Ring network for transmitting wavelength-multiplexed informations
Patent number
5,760,934
Issue date
Jun 2, 1998
France Telecom
Alain Sutter
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical component adapted to monitor a multiwavelength link and add...
Patent number
5,748,815
Issue date
May 5, 1998
France Telecom
Andre Hamel
G02 - OPTICS
Information
Patent Grant
High isolation, optical add-drop multiplexer
Patent number
5,712,717
Issue date
Jan 27, 1998
France Telecom
Andre Hamel
G02 - OPTICS
Information
Patent Grant
Telecommunications system combining wavelength multiplexing and pac...
Patent number
5,510,923
Issue date
Apr 23, 1996
France Telecom Etablissement Autonome de Droit Public
Guignard Philippe
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Add - drop multiplexer
Patent number
5,506,710
Issue date
Apr 9, 1996
France Telecom Establissement Autonome de Droit Public
Andre Hamel
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical communications network
Patent number
5,432,628
Issue date
Jul 11, 1995
France Telecom
Philippe Guignard
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Optical distributor
Patent number
5,353,145
Issue date
Oct 4, 1994
France Telecom Etablissement Autonome de Droit Public
Emile Le Coquil
H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information
Patent Grant
Multipurpose component with integrated optics and distribution netw...
Patent number
5,125,049
Issue date
Jun 23, 1992
French State represented by the Minister of Post, Telecommunications and Space
Andre Hamel
G02 - OPTICS