% Expired Patents = 50.0

Trademarks = 6

Forward Citations = 9

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2 inventors (with patents filed for the assignee):

Steven A Muth (1 out of 1 patent)

Richard P Carr (1 out of 4 patents)

2 patents: Sort by Forward Citations

1. 8349033 - Diesel fuel, diesel fuel additive, and associated method for using the same (2013-01-08),

2. 6742345 - Temperature control system using aqueous 1,3-propanediol solution (2004-06-01),

Company Badge

USPTO Data Jan 1 1976 - Oct 6 2026

2 Patents

#56 in Wheeling, IL

#4,384 in Illinois

#94,782 in US

Wheeling, IL, United States of America

The Penray Companies, Inc.

Forward Citations = 9

2 inventors:

Steven A Muth (1 out of 1 patent)

Richard P Carr (1 out of 4 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: The Penray Companies, Inc.. Retrieved from https://idiyas.com/company/penray-companies

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]