Patent Leaderboard
USPTO Patent Rankings Data through Sept 30, 2025
YC

Yun Seok Chang

Seoul, KR: #3,138 of 7,818 inventorsTop 45%
Overall (2018): #179,818 of 503,207Top 40%
1 Patents 2018

Issued Patents 2018

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
9974447 Method for measuring blood pressure, and apparatus for measuring blood pressure based on said method Sung Hun Woo, Yun-Young Choi 2018-05-22