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USPTO Patent Rankings Data through Sept 30, 2025
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Chang-Sun RYU — 1 Patent

KTKt: 1 patents #406 of 904Top 45%
Seoul, KR: #24,369 of 39,741 inventorsTop 65%
Overall (All Time): #2,987,188 of 4,157,543Top 75%
1 Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9264777 Control video content play speed Young Ho Han, Jong Se Park, Hee Kyung Kim, Sungwon Park, Sung Chan Park 2016-02-16