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For the Inventor, By the Inventor

Chicago, IL, United States of America

Superior Graphite Company


USPTO Granted Patents = 24

% Expired Patents = 25.0



Trademarks = 11

Forward Citations = 290

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27 inventors (with patents filed for the assignee):

goldMedal Peter L Zaleski (11 out of 12 patents)

silverMedal David J Derwin (7 out of 8 patents)

bronzeMedal William M Goldberger (7 out of 14 patents)

4.  Changjun Zhou (4 out of 4 patents)

5.  Frank A Wawrzos (4 out of 5 patents)

6.  Igor V Barsukov (3 out of 4 patents)

7.  Donald J Weintritt (3 out of 3 patents)

8.  Peter Roy Carney (2 out of 2 patents)

9.  Henry Francois (2 out of 2 patents)

10.  Walter H Flood, Jr (2 out of 3 patents)

11.  Richard J Girkant (2 out of 2 patents)

12.  Kenneth Skiles (2 out of 2 patents)

13.  Michael A Castro (2 out of 2 patents)

14.  James L Bruley (1 out of 1 patent)

15.  Jess Maruri Garcia (1 out of 7 patents)


24 patents:

1. 9458703 - Compressible carbonaceous particulate material and method of making same (2016-10-04),
2. 9206681 - Wellbore fluid testing assembly (2015-12-08),
3. 8999898 - Drilling fluid additive for loss circulation and wellbore strengthening (2015-04-07),
4. 8617309 - Cement compositions including resilient graphitic carbon fraction (2013-12-31),
5. RE43044 - Electrically conductive pavement mixture (2011-12-26),
6. 7666469 - Method of making graphite-coated particulate materials (2010-02-23),
7. 7617869 - Methods for extracting oil from tar sand (2009-11-17),
8. 7402338 - Graphite-coated particulate materials (2008-07-22),
9. 6971819 - Electrically conductive pavement mixture (2005-12-06),
10. 6756027 - Method of preparing graphite intercalation compounds and resultant products (2004-06-29),
11. 6660434 - Engineered carbonaceous materials and power sources using these materials (2003-12-09),
12. 6350722 - High-temperature, water-based lubricant and process for making the same (2002-02-26),
13. 6287694 - Method for expanding lamellar forms of graphite and resultant product (2001-09-11),
14. 6194358 - Hopper car anti-bridging method and coating (2001-02-27),
15. 6169059 - High-temperature, water-based lubricant and process for making the same (2001-01-02),
Company Overview
Superior Graphite Company, based in Chicago, IL, specializes in the development and manufacturing of advanced graphite and carbon-based materials. The company focuses on delivering innovative solutions for various industries, including energy, aerospace, and electronics. With a commitment to research and technology, Superior Graphite leverages its expertise in material science to enhance product performance and sustainability. Their offerings include specialty graphites, conductive materials, and custom solutions tailored to meet specific customer needs.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

Superior Graphite Company USPTO Patent Assignee Logo
24 Patents

#178 in Chicago, IL

#722 in Illinois

#13,895 in US

#26,686 in the World

Chicago, IL (US)
Chicago, IL, United States of America

Superior Graphite Company

Forward Citations = 290

27 inventors:

goldMedal Peter L Zaleski (11 out of 12 patents)

silverMedal David J Derwin (7 out of 8 patents)

bronzeMedal William M Goldberger (7 out of 14 patents)

4.  Changjun Zhou (4 out of 4 patents)

5.  Frank A Wawrzos (4 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Superior Graphite Company. Retrieved from https://idiyas.com/company/superior-graphite-company

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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