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For the Inventor, By the Inventor

Pittsburgh, PA, United States of America

Calgon Carbon Corporation


USPTO Granted Patents = 133

% Expired Patents = 9.0


Trademarks = 45

Forward Citations = 2,069

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111 inventors (with patents filed for the assignee):

goldMedal Richard A Hayden (29 out of 32 patents)

silverMedal Walter George Tramposch (18 out of 18 patents)

bronzeMedal Michael Greenbank (12 out of 12 patents)

4.  Thomas M Matviya (12 out of 23 patents)

5.  Nicholas R Pollack (11 out of 11 patents)

6.  Robert H Vaughn (10 out of 11 patents)

7.  David T Doughty (9 out of 9 patents)

8.  Richard A Mimna (7 out of 20 patents)

9.  Jason P Mazzoccoli (6 out of 13 patents)

10.  Chen-Chou Chiang (6 out of 6 patents)

11.  Robert F Sutt, Jr (6 out of 6 patents)

12.  Ryan W Walker (6 out of 6 patents)

13.  Toan P Vo (5 out of 7 patents)

14.  Richard W Farmer (5 out of 5 patents)

15.  Rebecca L Distefano (5 out of 5 patents)


Core Competencies:
Sorbent Materials
PFAS Filtration
Mercury Removal
Air Purification
Chemical Sorbents
Activated Carbon
Fluid Treatment
Heavy Metals
Vapor Adsorbents
Odor Removal
Nitrogen Oxides
Biogas Purification

133 patents:

1. 12710353 - HYDROCARBON ADSORBER TESTING DEVICE AND METHOD (2026-08-18),
2. 12558672 - Chloramine and chlorine removal material and methods for making the same (2026-02-24),
3. 12558668 - Vapor adsorbent for enclosed volumes (2026-02-24),
4. 12478948 - Perfluoroalkyl and polyfluoroalkyl sorbent materials and methods of use (2025-11-25),
5. 12319593 - Sorbents having high volumetric iodine and molasses values for removal of PFAS from fluids and methods of making and using the same (2025-06-03),
6. 12318758 - Textured sorbent sheets, assemblies containing them, and molds for making same (2025-06-03),
7. 12274997 - Sorbents for immersion cooling (2025-04-14),
8. 12083502 - Chemical sorbent oxidation method and sorbents made therefrom (2024-09-10),
9. 12076687 - Sorbent devices for air intakes (2024-09-03),
10. 12064745 - Iron and nitrogen treated sorbent and method for making same (2024-08-20),
11. 12059668 - Copper, iron, and nitrogen treated sorbent and method for making same (2024-08-13),
12. 11975305 - Sorbent and method of making (2024-05-07),
13. 11958803 - Method for inerting activated carbon in biogas purification equipment (2024-04-16),
14. 11911743 - Perfluoroalkyl and polyfluoroalkyl sorbent materials and methods of use (2024-02-27),
15. 11872539 - Copper and nitrogen treated sorbent and method for making same (2024-01-16),
Calgon Carbon Corporation is a global manufacturer and supplier of activated carbon and innovative treatment solutions. With headquarters in Pittsburgh, Pennsylvania, the company offers a range of products and services to address water, air, and food purification needs. Their activated carbon products are used in diverse applications such as industrial processes, water treatment, and air purification. Calgon Carbon Corporation is committed to providing sustainable solutions for a cleaner environment.
This text is generated by artificial intelligence and may not be accurate.

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USPTO Data Jan 1 1976 - Sep 22 2026

Calgon Carbon Corporation
133 Patents

#28 in Pittsburgh, PA

#123 in Pennsylvania

#2,912 in US

#6,050 in the World

Pittsburgh, PA (US)
Pittsburgh, PA, United States of America

Calgon Carbon Corporation

Forward Citations = 2,069

111 inventors:

goldMedal Richard A Hayden (29 out of 32 patents)

silverMedal Walter George Tramposch (18 out of 18 patents)

bronzeMedal Michael Greenbank (12 out of 12 patents)

4.  Thomas M Matviya (12 out of 23 patents)

5.  Nicholas R Pollack (11 out of 11 patents)

Please report any incorrect information to [email protected]
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