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L'air Liquide, S.a.

USPTO Granted Patents = 24

Forward Citations = 279

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26 inventors (with patents filed for the assignee):

John Warren Simmons (7 out of 21 patents)

Okan Max Ekiner (6 out of 29 patents)

Richard Allen Hayes (3 out of 106 patents)

4. Gregory K Fleming (2 out of 11 patents)

5. Billy J Etienne (2 out of 3 patents)

6. Samuel David Arthur (1 out of 57 patents)

7. Philippe Lefebvre (1 out of 18 patents)

8. Francis Briand (1 out of 16 patents)

9. Karim Chouf (1 out of 10 patents)

10. Jacques Segret (1 out of 3 patents)

11. Mark Weinberg (1 out of 21 patents)

12. Timothy D Krizan (1 out of 8 patents)

13. Eric Verna (1 out of 6 patents)

14. Harald Winter (1 out of 2 patents)

15. Richard A Sauer (1 out of 12 patents)

24 patents: Sort by Forward Citations

1. 6831248 - Use of helium/nitrogen gas mixtures for the laser welding of stainless steel pipes (2004-12-14),

2. 6820659 - Aircraft fuel inerting system for an airport (2004-11-23),

3. 6820432 - Method of operating a heat recovery boiler (2004-11-23),

4. 5868992 - Treatment of gas separation membranes with inert solvent (1999-02-09),

5. 5683652 - Process for reducing dust emissions of a blast furnace (1997-11-04),

6. 5673562 - Bulk delivery of ultra-high purity gases at high flow rates (1997-10-07),

7. 5618332 - Process for enhancing the selectivity of mixed gas separations (1997-04-08),

8. 5608014 - Blends of polyethersulfones with aromatic polymides, polyamides or (1997-03-04),

9. 5599380 - Polymeric membrane (1997-02-04),

10. 5474596 - Aromatic polyetherketone gas separation membranes (1995-12-12),

11. 5468430 - Process of making multicomponent or asymmetric gas separation membranes (1995-11-21),

12. 5393324 - Aromatic polyetherketone gas separation membranes (1995-02-28),

13. 5393323 - Aromatic polyethersulfone gas separation membranes (1995-02-28),

14. 5380433 - Hollow fiber membrane separation device with a housing made from a (1995-01-10),

15. 5352273 - Alkyl substituted aromatic polyester gas separation membranes (1994-10-04),

L'air Liquide, S.A. is a global provider of gases, technologies, and services for Industry and Health. With a presence in over 80 countries, they offer a wide range of products including oxygen, nitrogen, hydrogen, and many more. L'air Liquide enables customers to enhance their processes, improve energy efficiency, and reduce environmental impact. Through constant innovation, they strive to create lasting value for their stakeholders.

This text is generated by artificial intelligence and may not be accurate.

Company Badge

USPTO Data Jan 1 1976 - Dec 30 2025

24 Patents

#190 in Paris

#850 in France

#25,857 in the World

L'air Liquide, S.a.

Forward Citations = 279

26 inventors:

John Warren Simmons (7 out of 21 patents)

Okan Max Ekiner (6 out of 29 patents)

Richard Allen Hayes (3 out of 106 patents)

4. Gregory K Fleming (2 out of 11 patents)

5. Billy J Etienne (2 out of 3 patents)

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