WC

Wan-Kuo Chih

SC S&S Tech Co.: 2 patents #10 of 24Top 45%
UL Ultratera: 2 patents #12 of 20Top 60%
Overall (All Time): #1,259,495 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
7080447 Method of manufacturing solder mask of printed circuit board Chong-Ren Maa, Ming-Sung Tsai 2006-07-25
6933448 Printed circuit board having permanent solder mask Chong-Ren Maa, Ming-Sung Tsai 2005-08-23
6753480 Printed circuit board having permanent solder mask Chong-Ren Maa, Ming-Sung Tsai 2004-06-22
6395625 Method for manufacturing solder mask of printed circuit board Chong-Ren Maa, Ming-Sung Tsai 2002-05-28