Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8294788 | Hand-held device having positioning and photographing functions and geographical positioning methods thereof | I-Ru Liu, Ting-I Tsai | 2012-10-23 |
| 7599796 | Dual-mode location position system | Ting-Yi Tsai, Kuen-Ruey Lu, I-Ru Liu | 2009-10-06 |