Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8188840 | Authenticating method and identification system | Yin-Hung Tseng | 2012-05-29 |
| 7602291 | Method and system for verifying authenticity of an object | Yin-Hung Tseng | 2009-10-13 |
| D437350 | Ink bag | — | 2001-02-06 |