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L'air Liquide, Société Anonyme Pour L'etude Et L'exploitation Des Procédés Georges Claude

USPTO Granted Patents = 1,434

CIPO Patents = 97

EPO Patents = 1,247

Trademarks = 39

Forward Citations = 5,369

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1,460 inventors (with patents filed for the assignee):

Jean-Marc Girard (60 out of 75 patents)

Christian Dussarrat (48 out of 84 patents)

Christian Monereau (45 out of 78 patents)

4. Antoine Frenal (44 out of 45 patents)

5. Arthur Darde (37 out of 38 patents)

6. Alain Guillard (34 out of 64 patents)

7. Nicolas Blasco (34 out of 35 patents)

8. Alain Briglia (34 out of 38 patents)

9. Laurent Allidieres (33 out of 33 patents)

10. Jean-Pierre Tranier (29 out of 32 patents)

11. Julien Gatineau (29 out of 29 patents)

12. Benoit Davidian (25 out of 27 patents)

13. Renaud Ligonesche (25 out of 25 patents)

14. Antonio Sanchez (23 out of 25 patents)

15. Gennadiy Itov (23 out of 24 patents)

Core Competencies:

Metal Oxide Thin Films

Fluid Compression

Liquid Hydrogen Supply

Cryogenic Fluid Storage

Electrolysis Arrangement

Gas Separation

Thermal Power Generation

Synthesis Gas Production

Dielectric Films

Biogas Treatment

Gas Cylinder Management

Cold Cryogenic Supply

1,434 patents: Sort by Forward Citations

1. 12492124 - Process and device for membrane separation of a mixture containing hydrogen and carbon dioxide as main components (2025-12-09),

2. 12489104 - Processes for forming metal oxide thin films on electrode interphase control (2025-12-02),

3. 12486835 - Fluid compression apparatus and method (2025-12-02),

4. 12474019 - Fluid transfer installation (2025-11-18),

5. 12474007 - Coupling device and method (2025-11-18),

6. 12473899 - Pumping device, plant and method for supplying liquid hydrogen (2025-11-18),

7. 12473640 - Supply system for low volatility precursors (2025-11-18),

8. 12467134 - Method for deposition of gallium-containing film with gallium precursors (2025-11-11),

9. 12466731 - Method and apparatus for co-generating electricity in a process plant integrated with a thermal power generator using feedwater (2025-11-11),

10. 12459812 - Partial oxidation reactor with warm-up burner for production of synthesis gas (2025-11-04),

11. 12458947 - Packing section for a gas/liquid separation column (2025-11-04),

12. 12455113 - Device and method for refrigerating or liquefying a fluid (2025-10-28),

13. 12455074 - Compact flame-curtain burner (2025-10-28),

14. 12449096 - Device for storing cryogenic fluid (2025-10-21),

15. 12442688 - Method for in-line measurement of the temperature of products travelling on a conveyor in a food processing operation (2025-10-14),

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USPTO Data Jan 1 1976 - Dec 9 2025

1,434 Patents

#12 in Paris

#20 in France

#671 in the World

L'air Liquide, Société Anonyme Pour L'etude Et L'exploitation Des Procédés Georges Claude

Forward Citations = 5,369

1,460 inventors:

Jean-Marc Girard (60 out of 75 patents)

Christian Dussarrat (48 out of 84 patents)

Christian Monereau (45 out of 78 patents)

4. Antoine Frenal (44 out of 45 patents)

5. Arthur Darde (37 out of 38 patents)

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