YC

Yi-Chih Chang

WI Waltop International: 3 patents #1 of 6Top 20%
📍 Jinshanmian, TW: #34 of 142 inventorsTop 25%
Overall (2017): #53,793 of 506,227Top 15%
3
Patents 2017

Issued Patents 2017

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
9703401 Portable electronic device and miniaturization rechargeable capacitive stylus thereof 2017-07-11
9626011 Rechargeable capacitive stylus 2017-04-18
9606642 Portable electronic device and miniaturization rechargeable capacitive stylus thereof 2017-03-28