YC

Yuan-Fong Chang

TC Top Vending Machine Electronics Co.: 12 patents #1 of 1Top 100%
GA Gamemax: 9 patents #1 of 5Top 20%
UN Unknown: 1 patents #29,356 of 83,584Top 40%
📍 Taoyuan, PA: #2 of 6 inventorsTop 35%
Overall (All Time): #158,533 of 4,157,543Top 4%
25
Patents All Time

Issued Patents All Time

Showing 1–25 of 25 patents

Patent #TitleCo-InventorsDate
12400509 Bill receiving box 2025-08-26
D1069624 Bill receiving box 2025-04-08
D1053246 Barcode printer 2024-12-03
11926149 Printer 2024-03-12
11813855 Barcode printer 2023-11-14
11551021 Counterfeit paper currency detector with barcode reading function 2023-01-10
D973765 Printing machine 2022-12-27
11127251 Induction card managing device for a gaming machine 2021-09-21
10964174 Stored-value card machine 2021-03-30
10665049 Counterfeit paper currency detector 2020-05-26
D816526 Counterfeit currency detector 2018-05-01
D815966 Counterfeit currency detector 2018-04-24
9751329 Method for printing on elevation contours of the print object 2017-09-05
9597892 Inkjet printing method and inkjet printing apparatus 2017-03-21
9315022 Inkjet printing apparatus and printing method 2016-04-19
8820868 Inkjet printer's ink protection method 2014-09-02
6029972 Toothed wheel operated adjusting device for card stacking machines 2000-02-29
5938073 Card stacking and conveyance structure for automatic card vending machines 1999-08-17
5906366 Card outlet clearance adjusting device for card stacking machines 1999-05-25
5896974 Paper money exchanger 1999-04-27
5509646 Money box with an anti-theft device 1996-04-23
5485907 Paper money recognition and transmission system for vending machines 1996-01-23
5462150 Collecting device for currencies 1995-10-31
5454462 Structure of paper money recognition and transmission system 1995-10-03
5388817 Note stacker mechanism 1995-02-14