Ming-Nan Chuang has been granted 12 US patents while listed as an inventor at Leadtrend Technology. The first was granted in 2003 and the most recent in June 2013. Ming-Nan Chuang ranks #396,045 of 4,157,543 US inventors in our database (top 9.5%). Patent records list Ming-Nan Chuang in Hsinchu, TW.