Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8210998 | Abdominal exercise device | Yi-Tzu Chen | 2012-07-03 |
| D623243 | Exercising hoop | I-Huang Chen | 2010-09-07 |
| 7758480 | Exercise hoop | I-Huang Chen | 2010-07-20 |
| 7744510 | Waist exercising device | I-Huang Chen | 2010-06-29 |