Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7104930 | Structure of a treadmill | Hung-Mao Liao, Chin-Chia Liu | 2006-09-12 |
| 6719666 | Exercising device that produces elliptical foot movement | Hung-Mao Liao, Pei Chi | 2004-04-13 |
| 6672992 | Exercising device | Hung-Mao Liao | 2004-01-06 |
| 6530866 | Treading exerciser with heart beat monitoring capability | Nathan Pyles | 2003-03-11 |
| 6387016 | Walking exerciser having a mechanically operated treadmill body | — | 2002-05-14 |
| 6190289 | Foldable elliptical exercise machine | Nathan Pyles, Chang-Hsin Yang, Kuei-Sen Chen | 2001-02-20 |
| 6149551 | Foldable elliptical exercise machine | Nathan Pyles, Chang-Hsin Yang, Kuei-Sen Chen | 2000-11-21 |
| 6135927 | Foldable exerciser | — | 2000-10-24 |