YC

Yi-Chih Chang

WI Waltop International: 3 patents #1 of 2Top 50%
📍 Jinshanmian, TW: #46 of 175 inventorsTop 30%
Overall (2020): #62,526 of 565,922Top 15%
3
Patents 2020

Issued Patents 2020

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
10613647 Portable electronic device and stylus thereof 2020-04-07
10599272 Portable electronic device and active capacitive stylus thereof 2020-03-24
10564737 Capacitive stylus with eraser Chia-Jui Yeh 2020-02-18