Issued Patents All Time
Showing 51–57 of 57 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7965894 | Method for detecting alterations in printed document using image comparison analyses | Yibin Tian | 2011-06-21 |
| 7930627 | Office document matching method and apparatus | — | 2011-04-19 |
| 7925045 | Determining document authenticity in a closed-loop process | Maria Qian Zhao | 2011-04-12 |
| 7823797 | Color barcode producing, reading and/or reproducing method and apparatus | — | 2010-11-02 |
| 7567729 | Photo image matching method and apparatus | — | 2009-07-28 |
| 7551802 | Map image matching method and apparatus | — | 2009-06-23 |
| 7533817 | Color barcode producing method and apparatus, color barcode reading method and apparatus and color barcode reproducing method and apparatus | Hiroshi Tomita | 2009-05-19 |