ST

Sung-Nien Tsai

PC Phihong Technology Co.: 2 patents #9 of 40Top 25%
Overall (All Time): #2,131,242 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
7628621 Electric device with rotatable and receivable plug — 2009-12-08
7481660 Rotatable plug with fixable converter — 2009-01-27