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Alain Darut
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Chatou, FR
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Patents Grants
last 30 patents
Information
Patent Grant
Method of repairing in situ a pipe or tank of thermo-fusible materi...
Patent number
8,507,832
Issue date
Aug 13, 2013
Gaz de France
Dominique Gueugnaut
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Device and method for welding two polymer parts via fusion
Patent number
8,049,146
Issue date
Nov 1, 2011
Gaz de France
Alain Darut
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Method for connecting a branch pipe to a main pipeline and undergro...
Patent number
7,325,559
Issue date
Feb 5, 2008
Gaz de France
Alain Darut
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Grant
Identification process that makes it possible to confer traceabilit...
Patent number
7,200,456
Issue date
Apr 3, 2007
Gaz de France-(GDF) Service National
Dominique Gueugnaut
G06 - COMPUTING CALCULATING COUNTING
Patents Applications
last 30 patents
Information
Patent Application
DEVICE AND METHOD FOR WELDING TWO POLYMER PARTS VIA FUSION
Publication number
20070267404
Publication date
Nov 22, 2007
GAZ DE FRANCE
Alain Darut
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Method of repairing in situ a pipe or tank of thermo-fusible materi...
Publication number
20060037955
Publication date
Feb 23, 2006
Dominique Gueugnaut
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Application
Method for connecting a branch pipe to a main pipeline and undergro...
Publication number
20050242576
Publication date
Nov 3, 2005
GAZ DE FRANCE
Alain Darut
F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information
Patent Application
Identification process that makes it possible to confer traceabilit...
Publication number
20040083020
Publication date
Apr 29, 2004
Gaz De France (GDF) Service National
Dominique Gueugnaut
G06 - COMPUTING CALCULATING COUNTING