% Expired Patents = 50.0

Forward Citations = 48

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3 inventors (with patents filed for the assignee):

William W Holmes, Iv (1 out of 16 patents)

A Michael Horton (1 out of 4 patents)

Daniel A Copeland (1 out of 53 patents)

2 patents: Sort by Forward Citations

1. 6502867 - Flanged pipe fitting (2003-01-07),

2. 6214203 - Anodic encasement corrosion protection system for pipe and appurtenances, and metallic components thereof (2001-04-10),

Company Badge

USPTO Data Jan 1 1976 - Oct 13 2026

2 Patents

#98 in Birmingham, AL

#488 in Alabama

#94,841 in US

Birmingham, AL, United States of America

United States Pipe Foundry

Forward Citations = 48

3 inventors:

William W Holmes, Iv (1 out of 16 patents)

A Michael Horton (1 out of 4 patents)

Daniel A Copeland (1 out of 53 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: United States Pipe Foundry. Retrieved from https://idiyas.com/company/united-states-pipe-foundry

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]