PC

Pak Chuen Chang

Overall (All Time): #2,076,108 of 4,157,543Top 50%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
8503150 Electrical interface protecting apparatus — 2013-08-06
5675468 Apparatus and method for protecting equipment against electrical power surges — 1997-10-07