Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11179040 | Attachable monitoring device | Chun-Hao Tseng, Ho-Yi Chang, Kai-Chieh Chang | 2021-11-23 |
| 10143383 | Attachable monitoring device | Chun-Hao Tseng, Ho-Yi Chang, Kai-Chieh Chang | 2018-12-04 |
| 8678296 | Two-dimensional optical identification device with same gray level | Yu-Hsun Wang | 2014-03-25 |
| 8534565 | Two-dimensional optical identification device with same gray level for quick decoding and decoding method therefor | Yu-Hsun Wang | 2013-09-17 |
| 7770805 | Method for coding two dimensional optical identification with the same gray level and printing product thereof | Tung-Tsai Liao, Yu-Tang Chang | 2010-08-10 |