Ching-Wen Chang has been granted 38 US patents while listed as an inventor at Phison Electronics. The first was granted in 1998 and the most recent in October 2024. Ching-Wen Chang ranks #84,675 of 4,157,543 US inventors in our database (top 2.0%). Patent records list Ching-Wen Chang in Hsinchu, TW.