KC

Ku-Yuan Chang

AC Asia Optical Co.: 2 patents #110 of 366Top 35%
Overall (All Time): #2,138,217 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7639939 Lens module with an adjustable lens unit Po-Yu Chen 2009-12-29
7580206 Fixed focal length lens system 2009-08-25