L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude

France


 
Quantité totale PI 3 976
Quantité totale incluant filiales 4 458 (+ 817 pour les filiales)
Rang # Quantité totale PI 292
Note d'activité PI 3,9/5.0    2 006
Rang # Activité PI 343
Activité incl filiales 3,7/5.0    2 100
Symbole boursier
ISIN FR0000120073
Capitalisation 95.3B  (EUR)
Industrie Chemicals
Secteur Basic Materials
Classe Nice dominante Appareils de contrôle de l'envir...

Brevets

Marques

1 318 45
268 86
2 087 72
100
 
Dernier brevet 2025 - Fluid compression apparatus and ...
Premier brevet 1917 - Separation of the elements of air
Dernière marque 2025 - ECO ORIGIN
Première marque 1964 - AL

Filiales

29 subsidiaries with IP (604 patents, 213 trademarks)

30 subsidiaries without IP

 S'inscrire grtuitement pour accéder à la liste des filiales

Industrie (Classification de Nice)

Derniers inventions, produits et services

2025 P/S Medical gases in liquid or gaseous form. Supply and distribution of medical gases in liquid or g...
P/S Gaz médicaux sous forme liquide ou gazeuse, à savoir oxygène, azote, argon, dioxyde de carbone, h...
P/S Medical gases in liquid or gaseous form, namely oxygen, nitrogen, argon, carbon dioxide, hydrogen...
Invention Method and apparatus for compressing a gas. In a method for compressing a gas, the gas is compre...
Invention Fluid compression apparatus and method. The invention relates to a fluid compression apparatus (...
Invention Fluid compression apparatus and method. The invention relates to a fluid compression apparatus a...
Invention Process and device for producing liquid methane. Process and device for producing nitrogen-purif...
P/S Regulating and safety accessories for gas apparatus, namely cap and expansion valve for gas cylin...
Invention Method and apparatus for capturing co2 by partial condensation and/or distillation and/or scrubbi...
Invention Group 2 metal containing film forming compositions and vapor deposition of the films using the sa...
Invention Tank for storing cryogenic fluid. The invention relates to a tank for storing cryogenic fluid, f...
Invention Injector for a gas reservoir, and reservoir equipped with such an injector. An injector for a ga...
Invention Process for separating carbon dioxide from synthesis gas. A process for producing hydrogen from ...
P/S Medical gas cylinders, namely, metal containers for medical air or pressurized medical gas, part...
Invention Process and apparatus for capture of co2. 2222222.
Invention Apparatus and method for promoting recovery of effective gas in synthesis gas purification proces...
2024 P/S Sublimated industrial chemicals for vapor deposition of thin layers and nanoparticles Analysis, c...
P/S Sublimated industrial chemicals for vapor deposition of thin layers and nanoparticles. Analysis,...
Invention Plant and method for producing gaseous biomethane and liquid co2. In a plant and method for produ...
Invention Device for storing and supplying fluid, and vehicle comprising such a device. The invention relat...
Invention Malt production method and method for improving antioxidant activity of malt. The present applic...
Invention Gas-liquid injection apparatus and preparation method. Gas-liquid injection apparatus, having a ...
Invention Measuring apparatus with a hydrogen conversion device, calibration method, and facility comprisin...
Invention Method for ammonia recovery via partial liquefaction from an ammonia cracker using cryogenic sepa...
Invention Method and apparatus for separating residual ammonia and water from cracked ammonia. A method for...
Invention Separator vessel and installation comprising such a vessel. The invention relates to a separator...
Invention Gas refining system for removing contaminants in gas. A gas refining system 1 having: a system u...
Invention Method and apparatus for separating a gaseous mixture containing carbon dioxide. The invention re...
Invention Water cooling system and air separation device provided with same. A water cooling system may in...
Invention Electrolysis assembly. An electrolysis assembly for operation with an alkaline electrolysis mediu...
Invention Container for storing a cryogenic fluid. A container (1) for storing a cryogenic fluid, comprisin...
Invention Safety guard process for a combustion process. The invention relates to a safety guard process (2...
Invention Process for the production of hydrogen from ammonia. The invention relates to a process (1) for t...
Invention Process for producing cracked gas product comprising hydrogen. A process for producing a cracked ...
Invention Process and plant for producing a raw synthesis gas by partial oxidation of hydrocarbon-containin...
P/S Steam reforming installations comprised of reforming reactors, reforming ovens, reforming tubes, ...
P/S chemical products for etching semiconductors in the semiconductor industry, namely, semiconductor...
P/S Chemical products in gaseous form and particularly air gases, chemical gases, special gases and ...
P/S Chemicals, namely, high purity gases and gas mixtures intended for use in research and analysis ...
Invention Process for producing olefins and btx aromatics from oxygenates. The invention relates to a proce...
P/S Produits chimiques pour l'industrie pour le dépôt par phase vapeur de couches minces pour des app...
P/S Chemical products for use in industry for vapor deposition of thin films for energy applications.
Invention Installation et procede de liquefaction d'hydrogene
P/S Construction and repair, in particular maintenance of gas supply, distribution, treatment and pr...
P/S Apparatus and instruments for analysis, control, signaling, measurement and display for distribut...
P/S Apparatus and instruments for analysis, control, signaling, measurement and display for distribu...
Invention No inhale pour traiter un patient adulte atteint de sdra severe
Invention Appareil de compression de fluide et station de remplissage. L’invention conceme un appareil de c...
P/S Industrial chemicals, namely gases and gas mixtures for welding and flame cutting.
P/S Industrial chemicals for gas deposition of thin films and nanoparticles
P/S Industrial chemicals for gas deposition of thin films and nanoparticles.
P/S Produits chimiques pour l'industrie pour le dépôt par voie gazeuse de couches minces et de nanopa...
P/S Compressed gases for industrial use, non-combustible industrial gases for constituting protectiv...
Invention Dispositif de fourniture de fluide cryogenique et installation de remplissage de reservoirs. L’in...
P/S Gas injection devices [machines]; gas injection devices for water treatment [machines]; gas inje...
P/S Chemicals, namely, chloroethene, ethene, propene, butenes, butadiene, ethylene, propylene, benzen...
Invention Process and apparatus for cooling a flue gas stream from a reformer furnace. Process and apparatu...
Invention Process to obtain fully oxidized white liquor for use in the fiberline of a kraft pulp process. T...
Invention System and method for the removal of non-process elements from electrostatic precipitator ashes i...
Invention Dispositif et procede de compression. L’invention concerne un dispositif de compression d'un flui...
Invention Dispositif et procede de compression. L’invention conceme un dispositif de compression d'un fluid...
P/S Medical gas cylinders, Namely containers of metal for compressed medical gas, in particular Bottl...
P/S Medical gas cylinder, namely, metal container for pressurized medical gas, particularly cylinder...
Invention Process and apparatus for capture of co2. Apparatus for separation of a gaseous mixture containi...
Invention Process and plant for producing a synthesis gas stream with minimum emission of ammonia. Provided...
Invention Spin-coatable metal doped silicon-containing film-forming compositions and processes of using the...
2023 P/S Métaux d'apport pour le soudage; fils, électrodes et baguettes métalliques pour le soudage, la mé...
P/S Filler metals for welding; wires, electrodes and rods of metal for welding, metallizing, brazing...
Invention Method for removing liquid droplets from a gas and pressurizing the resulting liquid. A method f...
P/S Chemicals, gases and gas mixtures, in liquid or gaseous form intended for use in industry partic...
P/S Compressors for gas compression; pump control valves; turbines, other than for land vehicles, nam...
P/S Compresseurs pour la compression de gaz ; vannes ; détendeurs ; turbines de détente ; séparateurs...
P/S compressors for gas compressing; Slide valves; Expansion valves; Expanders; Fluid separators; Mec...
P/S Compressors for gas compression; valves; pressure reducers [parts of machines]; expansion turbin...
P/S Installation, entretien, maintenance et réparation d'appareils, instruments et dispositifs médica...
P/S Installation, servicing, maintenance and repair of medical apparatus, instruments and devices at...
P/S Analysis, checking, signaling, measuring, and display apparatus and instruments for the distribut...
P/S Apparatus and instruments for analysis, monitoring, signaling, measuring, visualization for the ...
P/S Chemicals, gases and gas mixtures, in liquid or gaseous form intended for use in industry, parti...
P/S Metal gas cylinders for compressed gas Treatment of materials, particularly gas cylinders, be mea...
P/S Gases for medical use; gas mixtures for medical use; gases for medical diagnosis; gas mixtures f...
Invention Material for chemical vapor deposition, film production method, and film. The present invention p...
P/S Equipements de combustion pour fours de fusion pour la fabrication de verre et de métaux non ferr...
P/S Treatment of materials by means of combustion processes for smelting furnaces for the manufacture...
P/S Combustion equipment for smelting furnaces for the manufacture of glass and non-ferrous metals; ...
Invention Fuel cell or electrolyze structure. The invention relates to a proton-exchange membrane fuel cel...
Invention Interruption system configured to control the transmission of an optical signal. Interruption sy...
Invention Additive manufacturing device comprising a robot for characterizing protective gas flows. A devi...
Invention Method and apparatus for cooling hydrogen. The invention relates to a method for cooling hydroge...
2022 Invention Fluid circulation device, installation and method using such a device. The invention relates to ...
P/S Rental of industrial and medical gas containers, supply (distribution) of industrial and medical...
Invention Nozzle for dispensing gases
P/S Combustion equipment for smelting furnaces used in the manufacture of glass and non-ferrous metal...
P/S Scientific, weighing, measuring, signaling and checking (supervision) apparatus and instruments;...
P/S Services for generating gas in liquid or gaseous form Apparatus, devices and installations for pr...
P/S Appareils, dispositifs et installations pour la production de produits chimiques, y compris les a...