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For the Inventor, By the Inventor

Cranston, RI, United States of America

Mearthane Products Corporation


USPTO Granted Patents = 17

% Expired Patents = 5.9

Trademarks = 8

Forward Citations = 163

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7 inventors (with patents filed for the assignee):

goldMedal John A Roderick (15 out of 16 patents)

silverMedal Albert C Chiang (14 out of 21 patents)

bronzeMedal David R Willis (4 out of 4 patents)

4.  Marcelino A Martins (2 out of 2 patents)

5.  George B Martins (2 out of 2 patents)

6.  Wen-Pin Chen (2 out of 2 patents)

7.  Charles Sipes (2 out of 2 patents)


17 patents:

1. 8515318 - High conductive, soft urethane rollers (2013-08-20),
2. 8222341 - Semi-conductive silicone polymers (2012-07-17),
3. 6780364 - Process of making a roller (2004-08-24),
4. 6764082 - Shoes for walking and rolling (2004-07-20),
5. 6451438 - Copolymerization of reactive silicone and urethane precursors for use in conductive, soft urethane rollers (2002-09-17),
6. 6417315 - Preparation of conductive polyurethanes using a conductive quasi-solution (2002-07-09),
7. 6361484 - Electrically conductive and semi-conductive polymers (2002-03-26),
8. 6352771 - Conductive urethane roller (2002-03-05),
9. 6260861 - Variable traction wheel for in-line roller skate (2001-07-17),
10. 6184331 - Preparation of conductive polyurethanes using a conductive quasi-solution (2001-02-06),
11. 6111051 - Preparation of conductive polyurethanes using a conductive quasi-solution (2000-08-29),
12. 6063499 - Electrically conductive and semi-conductive polymers (2000-05-16),
13. 5967552 - In-line wheeled skate (1999-10-19),
14. 5898057 - Preparation of conductive polyurethanes using a conductive quasi-solution (1999-04-27),
15. 5836591 - In-line wheeled skate for extreme skating (1998-11-17),
Company Overview
Mearthane Products Corporation, based in Cranston, Rhode Island, specializes in the development and manufacturing of high-performance polyurethane materials. The company focuses on providing innovative solutions for a variety of industries, including automotive, medical, and industrial applications. Mearthane's expertise lies in formulating advanced elastomers and coatings that enhance product durability and performance. With a commitment to quality and innovation, Mearthane Products Corporation continues to be a key player in the polyurethane sector.
Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 6 2026

17 Patents

#9 in Cranston, RI

#98 in Rhode Island

#18,881 in US

#35,887 in the World

Cranston, RI (US)
Cranston, RI, United States of America

Mearthane Products Corporation

Forward Citations = 163

7 inventors:

goldMedal John A Roderick (15 out of 16 patents)

silverMedal Albert C Chiang (14 out of 21 patents)

bronzeMedal David R Willis (4 out of 4 patents)

4.  Marcelino A Martins (2 out of 2 patents)

5.  George B Martins (2 out of 2 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Mearthane Products Corporation. Retrieved from https://idiyas.com/company/mearthane-products

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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