% Expired Patents = 100.0

EPO Patents = 1

Forward Citations = 25

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3 inventors (with patents filed for the assignee):

Stephen Howard Brown (1 out of 2 patents)

Philip Mason Kemp (1 out of 1 patent)

Mark Matthew Simon (1 out of 1 patent)

1 patent: Sort by Forward Citations

#94 in Worcester, MA

#6,606 in Massachusetts

#136,844 in US

Castion Corporation

Forward Citations = 25

3 inventors:

Stephen Howard Brown (1 out of 2 patents)

Philip Mason Kemp (1 out of 1 patent)

Mark Matthew Simon (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Castion Corporation. Retrieved from https://idiyas.com/company/castion

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]

1 patent (EPO):

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]