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USPTO Data Jan 1 1976 - Oct 13 2026
1 Patents
#384 in
#5,790 in South Korea
Yosan Eng. Ltd.
Forward Citations = 0
5 inventors:
Yosan Eng. Ltd.
% Expired Patents = 100.0
EPO Patents = 1
Forward Citations = 0
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5 inventors (with patents filed for the assignee):
Seung-Yong Shin (1 out of 8 patents)
Ju-Hyun Sun (1 out of 3 patents)
Dong-Myoung Lee (1 out of 2 patents)
4. Yong-Hwan Kim (1 out of 2 patents)
5. Dong-Han Kang (1 out of 2 patents)
1 patent:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Yosan Eng. Ltd.. Retrieved from https://idiyas.com/company/yosan-eng
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]
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]