PC

Pen Yen Chang

Overall (All Time): #3,379,735 of 4,157,543Top 85%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
7186146 Electric appliance/extension cord assembly with electromagnetic radiation-shielding function Kuo-Hung Liao, Pen Han Chang 2007-03-06