YC

Yun-Chuan Chang

Overall (All Time): #1,271,253 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Showing 1–4 of 4 patents

Patent #TitleCo-InventorsDate
6419255 Driving structure between front and rear wheels of a vehicle Chuan-Fu Kao 2002-07-16
6341768 Structure of torsion shock absorber Chuan-Fu Kao 2002-01-29
6299186 Antishock structure of scooter Chuan-Fu Kao 2001-10-09
6279930 Structure of scooter Chuan-Fu Kao 2001-08-28