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USPTO Patent Rankings Data through Sept 30, 2025
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Doo-Hun Sun — 2 Patents in 2021

CCCorentec Co.: 2 patents #5 of 21Top 25%
Seoul, KR: #1,719 of 8,082 inventorsTop 25%
Overall (2021): #165,564 of 548,734Top 35%
2 Patents 2021

Issued Patents 2021

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10893942 Offset adapter unit Goon-Hee Lee, Oui-Sik Yoo, Jung-Woo Seo, Yeo-Kyung Kang 2021-01-19
10893946 Asymmetric artificial knee joint Jung-Woo Seo, Oui-Sik Yoo 2021-01-19