Issued Patents 2002
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6461276 | Hand-shaking exerciser outfitted with internal inertia rotor | — | 2002-10-08 |
| D464095 | Hand-shaking exerciser | — | 2002-10-08 |
| 6390881 | Water dance conductor toy | Tzu-Hen Tong, Chi-Feng Chung | 2002-05-21 |
| 6364816 | Arm-building device | Jack Tang | 2002-04-02 |
| 6338703 | Sliding exerciser | — | 2002-01-15 |