CK

Ching Chih Kao

Overall (All Time): #2,159,363 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7243394 Door closing hinge device — 2007-07-17
7144026 Wheel chair having foldable back support — 2006-12-05