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USPTO Patent Rankings Data through Sept 30, 2025
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Deok-Moon Chang — 1 Patent in 2021

KTKt: 1 patents #12 of 39Top 35%
Seoul, KR: #3,157 of 8,082 inventorsTop 40%
Overall (2021): #476,845 of 548,734Top 90%
1 Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10904007 Authentication device based on biometric information, control server connected to the same, and login method based on biometric information thereof Tae Gyun Kim, Daesung Cho, In Soo Lee 2021-01-26