% Expired Patents = 100.0

Forward Citations = 27

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2 inventors (with patents filed for the assignee):

Richard F Wehrli (2 out of 2 patents)

Joseph P Gallione (1 out of 5 patents)

2 patents: Sort by Forward Citations

1. 7607873 - Concrete panel trailer assembly with strut-mounted wheels (2009-10-27),

2. 6821066 - Precast concrete panel combination trailer and storage rack assembly (2004-11-23),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

2 Patents

#64 in Naperville, IL

#4,388 in Illinois

#94,841 in US

Naperville, IL, United States of America

21St Century Structures, LLC

Forward Citations = 27

2 inventors:

Richard F Wehrli (2 out of 2 patents)

Joseph P Gallione (1 out of 5 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: 21St Century Structures, LLC. Retrieved from https://idiyas.com/company/21st-century-structures

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]