For the Inventor, By the Inventor

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Parma, OH, United States of America

Ucar Carbon Company Inc.

USPTO Granted Patents = 24

CIPO Patents = 1

Trademarks = 1

Forward Citations = 133

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33 inventors (with patents filed for the assignee):

Irwin Charles Lewis (12 out of 63 patents)

Richard Thomas Lewis (7 out of 12 patents)

Richard Liichang Shao (7 out of 23 patents)

4. Douglas J Miller (4 out of 28 patents)

5. Dai Huang (4 out of 5 patents)

6. James William Kortovich (3 out of 5 patents)

7. Ching-Feng Chang (2 out of 16 patents)

8. James Joseph Pavlisin (2 out of 6 patents)

9. Brian Bowman (2 out of 9 patents)

10. William Varela (2 out of 9 patents)

11. Robert E Smith (2 out of 6 patents)

12. Charles C Chiu (2 out of 7 patents)

13. Werner H Ruoff (2 out of 2 patents)

14. Allan Webster Intermill (2 out of 4 patents)

15. Stephen L Strong (2 out of 2 patents)

24 patents: Sort by Forward Citations

1. 7264878 - Laminated carbon foam sandwich for naval decking (2007-09-04),

2. 7232606 - Sealant for high strength carbon foam (2007-06-19),

3. 7230969 - Electrode joint locking system (2007-06-12),

4. 7207424 - Manufacture of carbon/carbon composites by hot pressing (2007-04-24),

5. 7206330 - End-face seal for graphite electrodes (2007-04-17),

6. 7150837 - Isotropic pitch-based materials for thermal insulation (2006-12-19),

7. 7103083 - Optimized graphite electrode pin configuration (2006-09-05),

8. 7016394 - Male-female electrode joint (2006-03-21),

9. 6916435 - Process of making graphite articles (2005-07-12),

10. 6898232 - Induction furnace for high temperature operation (2005-05-24),

11. 6878331 - Manufacture of carbon composites by hot pressing (2005-04-12),

12. 6871560 - Electrode inspection system (2005-03-29),

13. 6808155 - Lay-up mold (2004-10-26),

14. 6804582 - Digital electrode observation (2004-10-12),

15. 6803108 - Carbon fiber binder pitch (2004-10-12),

UCAR Carbon Company Inc. is a leading global manufacturer and supplier of carbon products. With a rich history spanning over a century, UCAR Carbon is known for its exceptional quality and innovative solutions in the carbon industry. We provide a wide range of carbon products, including graphite electrodes, cathodes, anodes, carbon fibers, carbon composites, and more. Our products are widely used in various industries such as steel, aluminum, chemicals, aerospace, automotive, and more. As a trusted partner, UCAR Carbon strives to deliver superior products, technical expertise, and excellent customer service to meet the evolving needs of our clients worldwide.

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

Company Badge

USPTO Data Jan 1 1976 - Dec 16 2025

24 Patents

#3 in Parma, OH

#577 in Ohio

#13,406 in US

#25,835 in the World

Parma, OH, United States of America

Ucar Carbon Company Inc.

Forward Citations = 133

33 inventors:

Irwin Charles Lewis (12 out of 63 patents)

Richard Thomas Lewis (7 out of 12 patents)

Richard Liichang Shao (7 out of 23 patents)

4. Douglas J Miller (4 out of 28 patents)

5. Dai Huang (4 out of 5 patents)

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