TC

Tsanghuai Chang

US Umax Data Systems: 2 patents #35 of 119Top 30%
📍 Changhua City, TW: #303 of 984 inventorsTop 35%
Overall (All Time): #2,208,634 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6661541 Closed circuit control device for scanner 2003-12-09
6433328 Stray light attenuating device 2002-08-13