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For the Inventor, By the Inventor

Pittsburgh, PA, United States of America

Koppers Delaware, Inc.

Calculating rank
USPTO Granted Patents = 17

% Expired Patents = 23.5


Trademarks = 12

Forward Citations = 19

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26 inventors (with patents filed for the assignee):

goldMedal John W Mospan (11 out of 29 patents)

silverMedal W Thomas Urmson, Jr (6 out of 23 patents)

bronzeMedal William Thomas Urmson, Jr (4 out of 14 patents)

4.  Billy Jay Cairns (3 out of 3 patents)

5.  Carl Camille Mueller (3 out of 3 patents)

6.  James T Dietz (3 out of 5 patents)

7.  John M Downey (3 out of 12 patents)

8.  Ronald K Junk (3 out of 5 patents)

9.  Steven David Singleton (3 out of 10 patents)

10.  Michael Bech Malmqvist (2 out of 2 patents)

11.  John Thomas Baron (2 out of 2 patents)

12.  Patrick J Boario (2 out of 6 patents)

13.  Donald A Bielski (2 out of 2 patents)

14.  James A Remington (2 out of 36 patents)

15.  Thomas A Golubic (2 out of 2 patents)


17 patents:

1. 12394787 - Dispersion of coal tar pitch for coating graphitic materials and use in Li-ion battery electrode production (2025-08-19),
2. 12037750 - Gauge plate insulator (2024-07-16),
3. 11898101 - Method and apparatus for continuous production of mesophase pitch (2024-02-13),
4. 11624029 - Heat treatment process for increased pitch yields (2023-04-11),
5. 11248172 - Heat treatment process and system for increased pitch yields (2022-02-15),
6. 11041274 - Center supported bond joint (2021-06-22),
7. 10961665 - Rail joint assembly having forged rail joint bars (2021-03-30),
8. D885977 - Anti-rail rollover device (2020-06-02),
9. 9328464 - Single bend rail (2016-05-03),
10. 9103074 - Modular insulated tie plate (2015-08-11),
11. 8777121 - Lap joint (2014-07-15),
12. 8302878 - Method and arrangement to insulate rail ends (2012-11-06),
13. 8123144 - Rail joint bars and rail joint assemblies (2012-02-28),
14. 8113441 - Lap joint (2012-02-14),
15. 8042747 - Notched tie plate insulator (2011-10-25),
Company Overview
Koppers Delaware, Inc. is a global leader in the production of treated wood products, chemicals, and carbon compounds. The company specializes in providing innovative solutions for various industries, including construction, utility, and transportation. With a strong emphasis on sustainability, Koppers develops advanced technologies that enhance the performance and longevity of its products. Headquartered in Pittsburgh, PA, the company operates across multiple regions, ensuring a broad reach and commitment to quality in its offerings.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

17 Patents

#126 in Pittsburgh, PA

#688 in Pennsylvania

#18,903 in US

#35,948 in the World

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

Koppers Delaware, Inc.

Forward Citations = 19

26 inventors:

goldMedal John W Mospan (11 out of 29 patents)

silverMedal W Thomas Urmson, Jr (6 out of 23 patents)

bronzeMedal William Thomas Urmson, Jr (4 out of 14 patents)

4.  Billy Jay Cairns (3 out of 3 patents)

5.  Carl Camille Mueller (3 out of 3 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Koppers Delaware, Inc.. Retrieved from https://idiyas.com/company/koppers-delaware

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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