YC

Ya-Chen Chao

Overall (All Time): #2,162,657 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7293620 Front wheel stabilizing device for an electric motor-driven wheeled vehicle — 2007-11-13
5799964 Wheelchair armrest assembly — 1998-09-01