Company Badge
USPTO Data Jan 1 1976 - Oct 13 2026
3 Patents
#22 in Portland, ME
#127 in Maine
#73,860 in US
Chapman Corporation
Forward Citations = 19
5 inventors:
Portland, ME, United States of America
Chapman Corporation
Trademarks = 1
Forward Citations = 19
Loading Chart...
Loading Chart...
5 inventors (with patents filed for the assignee):
Chandler G Sinnett (2 out of 3 patents)
Donald G Parent (1 out of 22 patents)
Ralph W Swanson (1 out of 1 patent)
4. Daniel F Gagnon (1 out of 2 patents)
5. Marshall Edward Hall (1 out of 1 patent)
3 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Chapman Corporation. Retrieved from https://idiyas.com/company/chapman
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]
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]
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]