YO

Yongchao Ou

Overall (All Time): #2,024,225 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
9194415 Coaxial tensionable automatic lock 2015-11-24
8974090 High contrast water-proof LED lamp 2015-03-10