% Expired Patents = 100.0

EPO Patents = 1

Forward Citations = 0

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7 inventors (with patents filed for the assignee):

Ji Hong Jung (1 out of 1 patent)

Seung Oh Ko (1 out of 1 patent)

Jin Han Kim (1 out of 43 patents)

4. Jun O Kim (1 out of 3 patents)

5. Jong Man Choi (1 out of 1 patent)

6. Young Dae Ko (1 out of 2 patents)

7. Dae Hwan Kim (1 out of 58 patents)

1 patent: Sort by Forward Citations

#261 in Incheon, 402-040

#5,802 in South Korea

Sang-A Frontec

Forward Citations = 0

7 inventors:

Ji Hong Jung (1 out of 1 patent)

Seung Oh Ko (1 out of 1 patent)

Jin Han Kim (1 out of 43 patents)

4. Jun O Kim (1 out of 3 patents)

5. Jong Man Choi (1 out of 1 patent)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Sang-A Frontec. Retrieved from https://idiyas.com/company/sang-a-frontec

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]