logo

For the Inventor, By the Inventor

Strongsville, OH, United States of America

Irwin Charles Lewis

This inventor holds 63 USPTO granted patents and 4 published patent applications and 7 EPO patents, primarily in Carbon Materials Engineering (CPC class 208 ). Top assignees: Graftech International Holdings Inc., Ucar Carbon Technology Corporation, Union Carbide Corporation. Active years: 1976-2019.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Irwin Charles Lewis. Retrieved from https://idiyas.com/inventor/irwin-charles-lewis

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

USPTO Granted Patents = 63 

% Patents Active = 74.6

 

Average Co-Inventor Count = 2.5

ph-index = 16

Forward Citations = 731(Granted Patents)

Forward Citations (Not Self Cited) = 650(Dec 10, 2025)


Inventors with similar research interests:


Location History:

  • Lakewood, OH (US) (1976 - 1977)
  • Strongville, OH (US) (1984)
  • Oberlin, OH (US) (2009 - 2014)
  • Strongsville, OH (US) (1981 - 2019)

Company Filing History:

goldMedal20 out of 107 
 
Graftech International Holdings Inc.
 patents
silverMedal17 out of 71 
 
Ucar Carbon Technology Corporation
 patents
bronzeMedal13 out of 2,922 
 
Union Carbide Corporation
 patents
4. 12 out of 24 
 
Ucar Carbon Company Inc.
 patents
5. 1 out of 1,528 
 
Amoco Corporation
 patents

Years Active: 1976-2019

Loading Chart...
Loading Chart...
Areas of Expertise:
Needle Coke
Carbon Foam
Electrochemical Cells
Graphite Electrodes
Thermal Insulation
Carbon Composites
High Strength Materials
Pitch-based Materials
Cement
Reinforced Carbon
Heteroatom Incorporated Coke
Monolithic Carbon Foam
63 patents (USPTO):Explore Patents
1. 10253264 - Method of producing needle coke for low CTE graphite electrodes (2019-04-09),
2. 9777221 - Method of producing needle coke for low CTE graphite electrodes (2017-10-03),
3. 8828348 - Reduced puffing needle coke from coal tar (2014-09-09),
4. 8747651 - High coking value pitch (2014-06-10),
5. 8658315 - Reduced puffing needle coke from decant oil (2014-02-25),
6. 8530094 - Reduced puffing needle coke from coal tar distillate (2013-09-10),
7. 8440302 - Reinforced resin-derived carbon foam (2013-05-14),
8. 8372510 - High strength monolithic carbon foam (2013-02-12),
9. RE42775 - Isotropic pitch-based materials for thermal insulation (2011-10-03),
10. 8007660 - Reduced puffing needle coke from decant oil (2011-08-30),
11. 8007659 - Reduced puffing needle coke from coal tar distillate (2011-08-30),
12. 8007658 - Reduced puffing needle coke from coal tar (2011-08-30),
13. 7972698 - Carbon foam core panels (2011-07-05),
14. 7785712 - Carbon foam structural insulated panel (2010-08-31),
15. 7758779 - Reinforced resin-derived carbon foam (2010-07-20),

Title: The Innovative Legacy of Inventor Irwin Charles Lewis

Introduction:

Irwin Charles Lewis, a visionary inventor based in Strongsville, OH (US), has made significant contributions to the world of technology with his inventive creations and groundbreaking patents.

Latest Patents:

Lewis has an impressive portfolio of 63 patents, with his latest inventions including the "Method of producing needle coke for low CTE graphite electrodes." This method involves producing low CTE graphite electrodes from needle coke formed from a coal tar distillate material with a high initial boiling point, showcasing his expertise in material science and engineering.

Career Highlights:

Throughout his career, Lewis has worked with renowned companies such as Graftech International Holdings Inc. and Ucar Carbon Technology Corporation. His dedication to innovation and commitment to excellence have not only shaped his own career but have also influenced the technological landscape.

Collaborations:

Lewis has had the privilege of collaborating with esteemed colleagues such as Douglas J Miller and Richard Liichang Shao. Together, they have pushed the boundaries of innovation, blending their unique skills and expertise to create pioneering solutions in the field of technology.

Conclusion:

In conclusion, Irwin Charles Lewis stands as a beacon of creativity and innovation, with his remarkable inventions leaving an indelible mark on the world of technology. His relentless pursuit of excellence and unwavering dedication to innovation continue to inspire future generations of inventors and engineers to push the boundaries of what is possible in the realm of technology.

Profile summary based on public USPTO records.
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]
Loading…