Yun-Chieh Chen has been granted 11 US patents while listed as an inventor at Phison Electronics. The first was granted in 2011 and the most recent in February 2018. Yun-Chieh Chen ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list Yun-Chieh Chen in Gongguan, TW.