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

Yi-Chien Chen

Jinshanmian, MA: #2 of 3 inventorsTop 70%
Overall (2019): #214,043 of 560,194Top 40%
1 Patents 2019

Issued Patents 2019

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
10520654 Ultra-thin broadband retardation film Tsai-An Yu, Da-Ren Chiou, Shih-Ming Hung, Peng-Shun Tsai, Yi-Ting Chiu +1 more 2019-12-31