Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9262677 | Valuable file identification method and identification system, device thereof | Tiancai Liang, Dahai Xiao | 2016-02-16 |
| 9014419 | Valuable document identification method and identification system thereof | Tiancai Liang, Dahai Xiao | 2015-04-21 |
| 9014458 | Valuable document identification method and system | Tiancai Liang, Dahai Xiao, Tingting Li | 2015-04-21 |