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Patents Grants
last 30 patents
Information
Patent Grant
Device for regulating the flow of gases having substantially differ...
Patent number
6,082,398
Issue date
Jul 4, 2000
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Ge...
Jean-Marc Girard
G05 - CONTROLLING REGULATING
Information
Patent Grant
Method and device for delivering a pure gas charged with a predeter...
Patent number
5,937,886
Issue date
Aug 17, 1999
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Ge...
Jean-Marc Girard
G01 - MEASURING TESTING
Information
Patent Grant
Selection device for providing one or the other of two gases to an...
Patent number
5,928,415
Issue date
Jul 27, 1999
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Ge...
Jean-Marc Girard
G01 - MEASURING TESTING
Information
Patent Grant
Device for delivering any one of a plurality of gases to an apparatus
Patent number
5,922,286
Issue date
Jul 13, 1999
L'Air Liquide, Societe Anonyme Pour L'Atude Et L'Exploitation Des Procedes Ge...
Jean-Marc Girard
F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information
Patent Grant
Device for delivering any one of a plurality of gases to an apparatus
Patent number
5,900,214
Issue date
May 4, 1999
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Ge...
Jean-Marc Girard
F17 - STORING OF DISTRIBUTING GASES OR LIQUIDS
Information
Patent Grant
Device for supplying gas to an analyzer of traces of impurities in...
Patent number
5,635,620
Issue date
Jun 3, 1997
L'Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Ge...
Catherine Ronge
G01 - MEASURING TESTING
Information
Patent Grant
Process and device for supplying gas to an analyzer of traces of im...
Patent number
5,587,519
Issue date
Dec 24, 1996
L'Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Ge...
Catherine Ronge
G01 - MEASURING TESTING