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Patents Grants
last 30 patents
Information
Patent Grant
Wire-guide nozzle assembly for a robotic TIG welding torch
Patent number
7,485,826
Issue date
Feb 3, 2009
L'Air Liquide-Societe Anonyme A Directoire Conseil de Surveillance pour l'Etu...
Andre Borne
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Laser/arc hybrid welding process for ferritic steels
Patent number
7,241,971
Issue date
Jul 10, 2007
L'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance pour l...
Christian Bonnet
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of welding motor vehicle elements, in particular tailored bl...
Patent number
7,176,410
Issue date
Feb 13, 2007
L'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance pour l...
Jean-Marie Fortain
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Arc welding set with power source and inverter
Patent number
7,095,634
Issue date
Aug 22, 2006
L'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance pour l...
Peyofougou Coulibaly
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
Information
Patent Grant
Wire-guide/nozzle assembly for a robotic TIG welding torch
Patent number
7,078,646
Issue date
Jul 18, 2006
L'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance pour l...
André Borne
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Plasma cutting torch speed modulation
Patent number
7,015,416
Issue date
Mar 21, 2006
La Soudure Autogene Francaise
Michel Delzenne
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Plasma cutting torch electrode with an Hf/Zr insert
Patent number
6,911,619
Issue date
Jun 28, 2005
L'Air Liquide, Societe Anonyme pour l'Etude et, l'Exploitation des Procedes G...
Michel Delzenne
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Pulsed-arc welding process and device
Patent number
6,723,956
Issue date
Apr 20, 2004
L'Air Liquide - Societe Anonyme a Directoire et Conseil de Surveillance pour...
Francis Briand
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Plasma torch provided with a ceramic protective cap
Patent number
6,639,174
Issue date
Oct 28, 2003
La Soudure Autogene Francaise
Regis Augeraud
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Flux-cored wire for gas-flow-shielded welding
Patent number
6,521,867
Issue date
Feb 18, 2003
La Soudure Autogene Francaise
Christian Bonnet
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Oxygen arc cutting with plasma pre-heating of ferrous materials, su...
Patent number
6,469,274
Issue date
Oct 22, 2002
La Soudure Autogene Francaise
Michel Delzenne
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Oxy-fuel torch with a single control for the valves
Patent number
6,451,245
Issue date
Sep 17, 2002
La Soudure Autogene Francaise
Philippe Pisot
F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
Information
Patent Grant
Method and device for pulsed arc welding
Patent number
6,384,376
Issue date
May 7, 2002
La Soudure Autogene Francaise
Gérard Plottier
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Flux-cored wire for gas-flow-shielded welding
Patent number
6,300,596
Issue date
Oct 9, 2001
La Soudure Autogene Francaise
Christian Bonnet
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Assembly of electrode body and electrode carrier for a plasma torch
Patent number
6,252,194
Issue date
Jun 26, 2001
La Soudure Autogene Francaise
Gérard Marhic
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Combined process and automatic installation for plasma-jet marking...
Patent number
6,236,013
Issue date
May 22, 2001
La Soudure Autogene Francaise
Michel Delzenne
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Protective mask for welding with viewing in the infrared and use of...
Patent number
6,230,327
Issue date
May 15, 2001
La Soudure Autogene Francaise
Francis Briand
A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
Information
Patent Grant
Nozzle/nozzle carrier assembly for a plasma torch
Patent number
6,169,264
Issue date
Jan 2, 2001
La Soudure Autogene Francaise
GG{acute over (e)}rard Marhic
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
TIG welding torch permitting improving striking the welding arc
Patent number
6,137,079
Issue date
Oct 24, 2000
La Soudure Autogene Francaise
Jean-Pierre Vincent
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Flux-cored welding wire with a low nitrogen content
Patent number
6,124,569
Issue date
Sep 26, 2000
La Soudure Autogene Francaise
Christian Bonnet
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Modulated spray MIG welding process and device
Patent number
6,111,218
Issue date
Aug 29, 2000
La Soudure Autogene Francaise
Olivier Matile
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Safety device for a plasma torch
Patent number
6,096,993
Issue date
Aug 1, 2000
La Soudure Autogene Francaise
Gerard Marhic
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Method of manufacturing metal tubes
Patent number
6,054,667
Issue date
Apr 25, 2000
La Soudure Autogene Francaise
Christian Bonnet
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Variable-polarity plasma arc welding process and device
Patent number
6,025,570
Issue date
Feb 15, 2000
La Soudure Autogene Francaise
Jean-Marie Fortain
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Electrode for a plasma torch
Patent number
6,011,238
Issue date
Jan 4, 2000
La Soudure Autogene Francaise
Christophe Bertez
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Plasma torch head with nozzle providing an improved cut and plasma...
Patent number
5,736,708
Issue date
Apr 7, 1998
La Soudure Autogene Francaise
Michel Delzenne
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Process for welding thermoplastic materials with projection of hot gas
Patent number
5,298,713
Issue date
Mar 29, 1994
L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Ge...
Pascal Marlin
B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
Information
Patent Grant
Gun for cutting out sheet metal
Patent number
5,278,387
Issue date
Jan 11, 1994
La Soudure Autogene Francaise
Andre Borne
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Grant
Process and apparatus for the formation of a deposit by projection...
Patent number
5,269,462
Issue date
Dec 14, 1993
L'Air Liquide, Societe Anonyme Pour L'Etude et L'Exploitation des Procedes Ge...
Serge Suzon
C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
Information
Patent Grant
Aligning and welding sheet plate edges
Patent number
4,506,821
Issue date
Mar 26, 1985
La Soudure Autogene Francaise
Joseph Bernou
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Patents Applications
last 30 patents
Information
Patent Application
Method for Cutting Stainless Steel with a Fiber Laser
Publication number
20120024831
Publication date
Feb 2, 2012
La Soudure Autogene Francaise (Air Liquide Welding France)
Francis BRlAND
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Wire-guide nozzle assembly for a robotic tig welding torch
Publication number
20070289951
Publication date
Dec 20, 2007
L'AIR LIQUIDE-SOCIETE ANONYME A DIRECTORIRE ET CON
Andre Borne
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
METHOD FOR CUTTING STAINLESS STEEL WITH A FIBER LASER
Publication number
20070119834
Publication date
May 31, 2007
L'Air Liquide Societe Anonyme pour I'Etude et I'Exploitation des Procedes Geo...
Francis Briand
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Plasma cutting torch with differentiated gas injection ducts
Publication number
20050199594
Publication date
Sep 15, 2005
L'Air Liquide, Societe Anonyme Directoire et Conseil de Surveillance pour I'E...
Edmond Baillot
H05 - ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Plasma cutting process and unit with current slaved to the plasma gas
Publication number
20050173381
Publication date
Aug 11, 2005
L'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance pour I...
Michel Delzenne
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Laser/arc hybrid welding process for ferritic steels
Publication number
20050155960
Publication date
Jul 21, 2005
L'Air Liquide, Societe Anonyme a Directoire et Conseil de Surveillance pour I...
Christian Bonnet
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
Information
Patent Application
Flux-cored wire for gas-flow-shielded welding
Publication number
20010023863
Publication date
Sep 27, 2001
La Soudure Autogene Francaise
Christian Bonnet
B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR