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USPTO Data Jan 1 1976 - Oct 20 2026
1 Patents
#46 in Chungcheongnam-do
#5,802 in South Korea
Sejong E&c Co., Ltd.
Forward Citations = 1
4 inventors:
Chungcheongnam-do, South Korea
Sejong E&c Co., Ltd.
% Expired Patents = 100.0
Forward Citations = 1
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4 inventors (with patents filed for the assignee):
Gyung Nam Min (1 out of 1 patent)
Si Dong Ryu (1 out of 1 patent)
Jae Won Lee (1 out of 22 patents)
4. Jung Gwan Lee (1 out of 1 patent)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sejong E&c Co., Ltd.. Retrieved from https://idiyas.com/company/sejong-e-and-c-company
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]