Inventor · disambiguated record

Tsung-Yu Chang

Also filed as: CHANG TSUNG-YU

1 granted patent·5 citations·filing 2012–2012

26Inventor score

Technology areasH04L

Files withJRSYS INTERNAT CORP1

Top patents by PatentIndex Score

1 record

0169US8832448B2Dual-channel electronic signature system using image codes and related computer program productJRSYS INTERNAT CORP·Filed 2012·Granted Sep 9, 2014·5 cites·15 claims

Join the waitlist — get patent alerts

Get an alert when Tsung-Yu Chang files or is granted a new patent.

We store only your email — no account needed. See our privacy policy.

Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →