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USPTO Data Jan 1 1976 - Oct 13 2026
2 Patents
#215 in Daejeon
#3,796 in South Korea
Visoft Ltd.
Forward Citations = 5
4 inventors:
Visoft Ltd.
% Expired Patents = 100.0
Trademarks = 1
Forward Citations = 5
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4 inventors (with patents filed for the assignee):
Dongsoo Han (1 out of 3 patents)
Dong-soo Han (1 out of 5 patents)
In-Je Lee (1 out of 1 patent)
4. Jong-Young Koo (1 out of 1 patent)
2 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Visoft Ltd.. Retrieved from https://idiyas.com/company/visoft
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]