Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7448953 | Structure of a horse riding machine | — | 2008-11-11 |
| 7074167 | Twister | — | 2006-07-11 |
| 6723026 | Stepping exerciser having resistance adjusting device | Chia-Sheng Liao | 2004-04-20 |
| D466567 | Stepping exerciser | Chia-Sheng Liao | 2002-12-03 |