Ching-Hsien Wang has been granted 4 US patents while listed as an inventor at Phison Electronics. The first was granted in 2003 and the most recent in May 2015. Ching-Hsien Wang ranks #1,080,739 of 4,157,543 US inventors in our database (top 26.0%). Patent records list Ching-Hsien Wang in Xihu, TW.