Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9333980 | Assistance device for climbing stairs | Pao-Pao Liu, Li-Heng Chang, Chin-Chia Liu | 2016-05-10 |
| 9192213 | Adjustable cane with memory function | Ching-Ming Lin, Szu-Yuan Huang, Yu-Ju Chen | 2015-11-24 |