For the Inventor, By the Inventor

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Parma, OH, United States of America

Graftech Inc.

USPTO Granted Patents = 25

% Expired Patents = 16.0

EPO Patents = 2

Trademarks = 2

Forward Citations = 477

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18 inventors (with patents filed for the assignee):

Robert Angelo Mercuri (16 out of 65 patents)

Thomas William Weber (8 out of 27 patents)

Michael Lee Warddrip (6 out of 12 patents)

4. Ronald Alfred Greinke (4 out of 25 patents)

5. Daniel Witold Krassowski (4 out of 16 patents)

6. Jeremy Hager Klug (2 out of 20 patents)

7. Paul Calarco (2 out of 4 patents)

8. Jing-Wen Tzeng (2 out of 5 patents)

9. Robert Anderson Reynolds, Iii (2 out of 25 patents)

10. Brian McNeil Ford (2 out of 7 patents)

11. Julian Norley (1 out of 26 patents)

12. Joseph Paul Capp (1 out of 19 patents)

13. Paul L Lagraff (1 out of 2 patents)

14. Robert T Letarte (1 out of 2 patents)

15. David Paul Blain (1 out of 4 patents)

Core Competencies:

Graphite Electrode

Fuel Cell

Capacitor

Thermal Conductivity

Flexible Graphite

Anode

Heat Sink

Catalyst Support

Sealing Composites

Conductivity Enhancement

Bioaerosol Sampling

Composite I-Beam

25 patents: Sort by Forward Citations

1. 6604457 - Process and apparatus for embossing graphite articles (2003-08-12),

2. 6592982 - Flexible graphite capacitor element (2003-07-15),

3. 6582846 - Method for preparing fuel cell component substrate of flexible graphite material having improved catalytic properties (2003-06-24),

4. 6555271 - Anode for lithium-ion battery (2003-04-29),

5. 6548156 - Fluid permeable flexible graphite article with enhanced electrical and thermal conductivity (2003-04-15),

6. 6538892 - Radial finned heat sink (2003-03-25),

7. 6528199 - Graphite article useful as an electrode for an electrochemical fuel cell (2003-03-04),

8. 6521369 - Flooding-reducing fuel cell electrode (2003-02-18),

9. 6517964 - Catalyst support material for fuel cell (2003-02-11),

10. 6506484 - Fluid permeable flexible graphite article with enhanced electrical and thermal conductivity (2003-01-14),

11. 6503652 - Fuel cell assembly method with selective catalyst loading (2003-01-07),

12. 6503626 - Graphite-based heat sink (2003-01-07),

13. 6479182 - Fuel cell electrode assembly with selective catalyst loading (2002-11-12),

14. 6468686 - Fluid permeable flexible graphite fuel cell electrode with enhanced electrical and thermal conductivity (2002-10-22),

15. 6463814 - Bioaerosol slit impaction sampling device (2002-10-15),

Company Overview

Graftech Inc. is a leading manufacturer and supplier of graphite products, specializing in high-performance materials for various industrial applications. The company focuses on developing advanced graphite electrodes, which are essential for electric arc furnace steel production, and other innovative solutions that cater to the energy and industrial sectors. Headquartered in Parma, Ohio, Graftech leverages its expertise in material science to enhance efficiency and sustainability in manufacturing processes across North America and beyond.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Oct 20 2026

25 Patents

#2 in Parma, OH

#589 in Ohio

#13,370 in US

#25,730 in the World

Parma, OH, United States of America

Graftech Inc.

Forward Citations = 477

18 inventors:

Robert Angelo Mercuri (16 out of 65 patents)

Thomas William Weber (8 out of 27 patents)

Michael Lee Warddrip (6 out of 12 patents)

4. Ronald Alfred Greinke (4 out of 25 patents)

5. Daniel Witold Krassowski (4 out of 16 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Graftech Inc.. Retrieved from https://idiyas.com/company/graftech

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]

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