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

France


Create a watch for L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
Total IP 4,014
Total IP incl. subs 4,486 (+ 816 for subs)
Total IP Rank # 295
IP Activity Score 3.9/5.0    1,796
IP Activity Rank # 380
IP AS incl. subs 3.7/5.0    1,876
Stock Symbol
ISIN FR0000120073
Market Cap. 95.3B  (EUR)
Industry Chemicals
Sector Basic Materials
Dominant Nice Class Environmental control apparatus

Patents

Trademarks

1,372 43
279 88
2,078 58
96
 
Last Patent 2026 - Process for starting up a carbon...
First Patent 1972 - Thermal cycle for the compressio...
Last Trademark 2026 - ARCAL SPEED
First Trademark 1964 - AL

Subsidiaries

30 subsidiaries with IP (607 patents, 209 trademarks)

30 subsidiaries without IP

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Industry (Nice Classification)

Latest Inventions, Goods, Services

2026 G/S Gases and gas mixtures for arc welding, reverse protection and plasma cutting.
2025 G/S Appareils médicaux; appareils médicaux pour le traitement de pathologies chroniques; appareils mé...
G/S Medical apparatus; medical apparatus for chronic condition treatment; medical respiratory-assist...
Invention Arrangement for regulation of a plant for the membrane permeation treatment of biogas. Arrangeme...
Invention Liquefier control for transient heat loads. An apparatus and method for controlling a cryogenic ...
Invention Liquefier control for transient heat loads. An apparatus and method for controlling a cryogenic l...
Invention Process for starting up a carbon capture process. The carbon capture process includes, under norm...
Invention Cooling facility and method. The invention relates to a facility for cooling a flow of cryogenic...
Invention Device and method for preparing high-purity hydrogen and/or oxygen by electrolysis of water. A d...
Invention Method for starting up a cryogenic distillation air separation apparatus. In a method for startin...
Invention Cryogenic refrigeration installation and method. The invention provides a cryogenic refrigeratio...
Invention Cryogenic refrigeration installation. Cryogenic refrigeration installation comprising a refriger...
Invention Unit for separating a mixture of carbon monoxide, hydrogen and methane by cryogenic distillation....
Invention Method of forming dielectric films, new precursors and their use in the semi-conductor manufactur...
Invention Furnaces for melting particulate materials. The present application discloses a furnace for melt...
Invention Electrolyzer structure. The invention relates to a structure of an electrolyzer or redox battery...
Invention Process for removing carbon dioxide from flue gas. The invention relates to a process for separat...
Invention Process for preparing powder. A preparation process for preparing powder from a first material a...
Invention Integrated process of ammonia cracking and reverse water gas shift. Process for the production of...
Invention Process for purifying co2. Two streams containing CO2 with different purities are separated in a...
Invention Preparation of group iii and lanthanide element containing precursors and their application to va...
Invention Installation for storing and dispensing cryogenic fluid. The invention relates to an installatio...
Invention Cryogenic air separation equipment and method. The present invention provides a cryogenic air sep...
Invention Cryogenic etching using sof2 and its family. A cryogenic etching method for forming an aperture b...
Invention Method for checking a measurement of a filling flow rate of a pressurised tank. t)Pdispdisp Tdisp...
Invention Melting method using multiple impacting flames. The invention relates to a melting method, in wh...
Invention 12. 6122eq100 > 30.100 > 30.
Invention Melting method using multiple impacting flames. The melting method, wherein the unmelted charges...
G/S Gaz médicaux sous forme liquide ou gazeuse, à savoir oxygène, azote, argon, dioxyde de carbone, h...
Invention Gas-liquide separator with plates. A device for separating a gas flow and a liquid electrolyte f...
Invention Optimized filling of cryogenic tanks. A method for filling a cryogenic liquid receiving tank, th...
Invention Reactor for partial oxidation of carbonaceous feedstocks. The invention relates to a reactor, in...
Invention Optimized filling of cryogenic tanks. Method for filling a plurality of cryogenic liquid receivi...
Invention Liquid nitrogen generator and process. A process for producing liquid nitrogen utilizes a distill...
Invention Liquid nitrogen generator and process. A process for producing liquid nitrogen utilizes a distil...
Invention Method for starting a cryogenic distillation air separation unit. The invention relates to a meth...
Invention Refrigerator, liquefaction plant, and method. The invention relates to a cycle-gas refrigerator, ...
Invention Process for producing gas comprising hydrogen. The invention relates to a process (100) for produ...
Invention Facility and method for liquefying hydrogen. The invention relates to a facility and a method for...
Invention Refrigerator, facility including such a refrigerator, and refrigeration method. The invention rel...
Invention Refrigeration installation and method. The invention relates to a refrigeration installation and ...
Invention Cryogenic etching using carbon oxy halides. 33-CO-X, Y-(C=O)-X, R1xyzz-COF wherein X and Y each i...
G/S Regulating and safety accessories for gas apparatus, namely, gas regulators for gas cylinders com...
2024 G/S Sublimated industrial chemicals for vapor deposition of thin layers and nanoparticles Analysis, c...
Invention Process for starting up a carbon capture process. The carbon capture process includes, under nor...
G/S Steam reforming installations comprised of reforming reactors, reforming ovens, reforming tubes, ...
G/S chemical products for etching semiconductors in the semiconductor industry, namely, semiconductor...
Invention Polymerization inhibitor composition and method of inhibiting polymerization of distillable disil...
G/S Chemical products in gaseous form and particularly air gases, chemical gases, special gases and ...
G/S Chemicals, namely, high purity gases and gas mixtures intended for use in research and analysis ...
G/S Produits chimiques pour l'industrie pour le dépôt par phase vapeur de couches minces pour des app...
G/S Chemical products for use in industry for vapor deposition of thin films for energy applications
G/S Apparatus and instruments for analysis, control, signaling, measurement and display for distribut...
G/S Industrial chemicals for gas deposition of thin films and nanoparticles
G/S Produits chimiques pour l'industrie pour le dépôt par voie gazeuse de couches minces et de nanopa...
G/S Compressed gases for industrial use, non-combustible industrial gases for constituting protectiv...
G/S Gas injection devices [machines]; gas injection devices for water treatment [machines]; gas inje...
G/S Chemicals, namely, chloroethene, ethene, propene, butenes, butadiene, ethylene, propylene, benzen...
G/S Medical gas cylinders, Namely containers of metal for compressed medical gas, in particular Bottl...
G/S Medical gas cylinder, namely, metal container for pressurized medical gas, particularly cylinder...
2023 G/S Métaux d'apport pour le soudage nommément cuivre en bobine pour le soudage; fils métalliques en m...
G/S Compressors for gas compression; pump control valves; turbines, other than for land vehicles, nam...
G/S Compresseurs pour la compression de gaz ; vannes ; détendeurs ; turbines de détente ; séparateurs...
G/S compressors for gas compressing; Slide valves; Expansion valves; Expanders; Fluid separators; Mec...
G/S Compressors for gas compression; valves; pressure reducers [parts of machines]; expansion turbin...
G/S Installation, entretien, maintenance et réparation d'appareils, instruments et dispositifs médica...
G/S Installation, servicing, maintenance and repair of medical apparatus, instruments and devices at...
G/S Analysis, checking, signaling, measuring, and display apparatus and instruments for the distribut...
G/S Apparatus and instruments for analysis, monitoring, signaling, measuring, visualization for the ...
Invention Method and installation for counting objects in a moving vehicle. Disclosed are a method and an ...
Invention Device and method for filling a pressurized-gas tank. The invention relates to a method for fill...
G/S Metal gas cylinders for compressed gas Treatment of materials, particularly gas cylinders, be mea...
Invention Facility and method for the liquefaction of hydrogen. The invention relates to a facility and a ...
Invention Method and apparatus for low-temperature separation of a gas containing co2 to produce a co2-rich...
G/S Équipements de combustion nommément chambre de combustion pour fours de fusion pour la fabricatio...
G/S Treatment of materials by means of combustion processes for smelting furnaces for the manufacture...
2022 G/S Rental of industrial and medical gas containers, supply (distribution) of industrial and medical...
G/S Combustion equipment for smelting furnaces used in the manufacture of glass and non-ferrous metal...
G/S Services for generating gas in liquid or gaseous form Apparatus, devices and installations for pr...
G/S Appareils, dispositifs et installations pour la production de produits chimiques, y compris les a...
G/S Pre-recorded audio cassettes, discs and magnetic tapes; Pre-recorded video discs and cassettes; D...
Invention Sidewall passivation layers and method of forming the same during high aspect ratio plasma etchin...
G/S Gaz et mélanges de gaz, sous forme liquide ou gazeuse, destinés à l'industrie, la recherche, l'en...
G/S Gases and gas mixtures, in liquid or gas form, for use in industry, research, the environment an...
G/S Gases for medical use; gas mixtures for medical use; gases for medical diagnosis; gas mixtures f...
2021 G/S Oxygen for medical use; filled oxygen cylinders, for medical use. Apparatus for producing oxygen...
G/S Commercial management services and commercial assistance services in the field of health; health...
G/S Consultation in the field of surface treatment of base metals and their alloys
G/S Telecommunications, namely, telecommunications access services; video telephone services, visual ...
G/S Pre-recorded audio magnetic tapes, discs and cassettes; pre-recorded video discs and cassettes; ...
G/S Gas production apparatus, devices and installations, namely, catalytic converters, and heat excha...
G/S Publication de textes publicitaires; relations publiques; location d'espaces publicitaires; étude...