WC

Wen-Kai Chen

Overall (All Time): #2,247,431 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
5882111 Display device specially used with a dart target for the game of cricket — 1999-03-16
5829755 Dart target with clock and alarm functions — 1998-11-03