Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7878959 | Electrically operated rehabilitation and exercise bed for simultaneous traction of upper limbs and lower limbs | Kuan-Chih Chen, Kuan-Han Chen | 2011-02-01 |
| 6616580 | Collapsible combination waist and leg exerciser | — | 2003-09-09 |
| 5839995 | Multi-functional health device | — | 1998-11-24 |
| D346189 | Exercise bench | — | 1994-04-19 |
| 4993407 | Exerciser for diseased and/or aged people's arms and legs | — | 1991-02-19 |