YC

Yuan-Fong Chang

TC Top Vending Machine Electronics Co.: 2 patents #1 of 1Top 100%
📍 Taoyuan, PA: #1 of 3 inventorsTop 35%
Overall (2018): #86,595 of 503,207Top 20%
2
Patents 2018

Issued Patents 2018

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
D816526 Counterfeit currency detector 2018-05-01
D815966 Counterfeit currency detector 2018-04-24