For the Inventor, By the Inventor

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Radnor, PA, United States of America

Airgas, Inc.

USPTO Granted Patents = 25

% Expired Patents = 4.0

Trademarks = 75

Forward Citations = 112

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55 inventors (with patents filed for the assignee):

Mark Joseph Doore (5 out of 5 patents)

Robert F Shock (5 out of 6 patents)

James L Gruenbacher (4 out of 4 patents)

4. Bradley Wallace (3 out of 3 patents)

5. Gregory Caniglia (3 out of 3 patents)

6. Robert J Grasmeder (3 out of 3 patents)

7. Robert Tessier (2 out of 2 patents)

8. Alexey Virovets (2 out of 2 patents)

9. Stephen B Miller (2 out of 4 patents)

10. Nolan R Petrich (2 out of 2 patents)

11. Anthony W Reccek, Jr (2 out of 2 patents)

12. Scott Laymon (2 out of 3 patents)

13. Tracey Jacksier (2 out of 24 patents)

14. Steven Weiss (2 out of 2 patents)

15. Frederick A Schweighardt (2 out of 2 patents)

25 patents: Sort by Forward Citations

1. 12636726 - Apparatus for pipe purging (2026-05-26),

2. 12305916 - Method to convert excess liquid oxygen into liquid nitrogen (2025-05-20),

3. 12257656 - Method for pipe purging (2025-03-25),

4. 11920732 - Use of stable isotopes of COto validate cylinder preparation (2024-03-05),

5. 11918960 - System and method for dosing wine barrels with sulfur dioxide gas (2024-03-05),

6. 11679156 - Use of stable isotopes to prove authentication of manufacturing location (2023-06-20),

7. 11311958 - Digital welding and cutting efficiency analysis, process evaluation and response feedback system for process optimization (2022-04-26),

8. 11155758 - Method of dosing a system with HCL then evacuating and purging (2021-10-26),

9. 11042173 - Method of mixing at least two gases (2021-06-22),

10. 11042172 - Method of mixing at least two gases (2021-06-22),

11. 11041590 - Apparatus for filling pressurized gas cartridges for medical use (2021-06-22),

12. 11035570 - Method for removing large amounts of condensate from an underground vault steam system during startup (2021-06-15),

13. D921031 - Communications terminal display screen with graphic user interface (2021-06-01),

14. 11016513 - Method of mixing at least two gases (2021-05-25),

15. 10751763 - Gas sampling methods (2020-08-25),

Airgas, Inc. is a leading supplier of industrial gases, welding equipment, and related products in the United States. The company specializes in providing a comprehensive range of gases, including oxygen, nitrogen, and argon, along with welding and cutting supplies. Airgas serves various industries, including healthcare, manufacturing, and construction, focusing on safety and efficiency in its offerings. With a strong presence across the U.S., Airgas is committed to innovation and sustainability in the industrial gas sector.

Profile summary based on public USPTO records.

Company Badge

USPTO Data Jan 1 1976 - Sep 29 2026

25 Patents

#1 in Radnor, PA

#491 in Pennsylvania

#13,334 in US

#25,651 in the World

Radnor, PA, United States of America

Airgas, Inc.

Forward Citations = 112

55 inventors:

Mark Joseph Doore (5 out of 5 patents)

Robert F Shock (5 out of 6 patents)

James L Gruenbacher (4 out of 4 patents)

4. Bradley Wallace (3 out of 3 patents)

5. Gregory Caniglia (3 out of 3 patents)

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