YL

Yu-Shun Lee

CO Contour Optik: 2 patents #4 of 15Top 30%
📍 Mapo-gu, KR: #1 of 19 inventorsTop 6%
Overall (All Time): #1,567,463 of 4,157,543Top 40%
3
Patents All Time

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
7681721 System for selecting eyeglasses David Chao 2010-03-23
7490717 System for selecting eyeglasses David Chao 2009-02-17
4783869 Rotative toothbrush — 1988-11-15