YC

Yung-Shou Chen

Overall (All Time): #146,249 of 4,157,543Top 4%
27
Patents All Time

Issued Patents All Time

Showing 26–27 of 27 patents

Patent #TitleCo-InventorsDate
D528890 Hammerhead 2006-09-26
7107874 Hammer having a detachable bell 2006-09-19