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Danbury, CT, United States of America

Ucar Carbon Technology Corporation

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USPTO Granted Patents = 71

Trademarks = 4

Forward Citations = 1,087

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63 inventors (with patents filed for the assignee):

Irwin Charles Lewis (17 out of 63 patents)

Robert Angelo Mercuri (16 out of 65 patents)

Ronald Alfred Greinke (13 out of 25 patents)

4. Ronald A Howard (12 out of 16 patents)

5. Mark T Arthur (8 out of 13 patents)

6. Terrence A Pirro (6 out of 8 patents)

7. Jeffrey John Gough (6 out of 9 patents)

8. Richard I Bretz (6 out of 6 patents)

9. Joseph Paul Capp (4 out of 19 patents)

10. Frank Henry Miner, Jr (4 out of 6 patents)

11. Thomas H Orac (4 out of 5 patents)

12. David R Ball (3 out of 6 patents)

13. Francis E Wise (3 out of 3 patents)

14. Dennis J Kampe (3 out of 6 patents)

15. David A Lehr (3 out of 3 patents)

Core Competencies:

Flexible Graphite Composite

Fuel Cell Elements

Carbon-Carbon Composites

Electrically Conductive Seal

Oxidation Resistant

Graphite Electrode

Thermal Stress Relief

Carbonaceous Cement

Electrochemical Cells

Modular Furnace Roof

Methane Storage

Graphitization Process

71 patents: Sort by Forward Citations

1. 6395220 - Carbon fiber binder pitch (2002-05-28),

2. 6074585 - Flexible graphite composite (2000-06-13),

3. 6060189 - Electrically conductive seal for fuel cell elements (2000-05-09),

4. 6037074 - Flexible graphite composite for use in the form of a fuel cell flow (2000-03-14),

5. 6017633 - Flexible graphite composite sheet and method (2000-01-25),

6. 5999558 - Integral spray cooled furnace roof and fume elbow (1999-12-07),

7. 5990027 - Flexible graphite composite (1999-11-23),

8. 5985452 - Flexible graphite composite sheet and method (1999-11-16),

9. 5981072 - Oxidation and corrosion resistant flexible graphite composite sheet and (1999-11-09),

10. 5976727 - Electrically conductive seal for fuel cell elements (1999-11-02),

11. 5902762 - Flexible graphite composite (1999-05-11),

12. 5887017 - Panelized spray-cooled furnace roof (1999-03-23),

13. 5885728 - Flexible graphite composite (1999-03-23),

14. 5846459 - Method of forming a flexible graphite sheet with decreased anisotropy (1998-12-08),

15. 5843298 - Method of production of solids-free coal tar pitch (1998-12-01),

Company Overview

Ucar Carbon Technology Corporation, based in Danbury, CT, specializes in the development and manufacturing of advanced flexible graphite composites. The company focuses on innovative solutions for various applications, including fuel cell elements and carbon-carbon composites, which are known for their exceptional thermal and oxidation resistance. Ucar's expertise extends to producing electrically conductive seals and graphite electrodes, catering to industries that require high-performance materials capable of withstanding thermal stress and enhancing operational efficiency.

Profile summary synthesized from public USPTO records and patent filings.

Company Badge

USPTO Data Jan 1 1976 - Nov 3 2026

71 Patents

#10 in Danbury, CT

#140 in Connecticut

#5,180 in US

#10,523 in the World

Danbury, CT, United States of America

Ucar Carbon Technology Corporation

Forward Citations = 1,087

63 inventors:

Irwin Charles Lewis (17 out of 63 patents)

Robert Angelo Mercuri (16 out of 65 patents)

Ronald Alfred Greinke (13 out of 25 patents)

4. Ronald A Howard (12 out of 16 patents)

5. Mark T Arthur (8 out of 13 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Ucar Carbon Technology Corporation. Retrieved from https://idiyas.com/company/ucar-carbon-technology

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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