Tsung-Hung Chang has been granted 11 US patents while listed as an inventor at United Microelectronics. The first was granted in 2013 and the most recent in May 2018. Tsung-Hung Chang ranks #435,149 of 4,157,543 US inventors in our database (top 10.5%). Patent records list Tsung-Hung Chang in Yuanchang, TW.