Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8496007 | Asymmetrical and complexly-curved, passive, device for relieving back and spinal postural mechanical pain | Vincent Chang | 2013-07-30 |
| D626655 | Gravity-operated spine stretcher | Vincent Chang | 2010-11-02 |