Ya-Chi Chen
4Patents
3Active
4Granted
39Portfolio score
Filing activity: Sep 8, 2003 → Mar 3, 2020 · 1 expiring within 5 years
Most-cited patents
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US8622590B2 | Illuminant assembly structure | Mechanical Engineering; Lighting; Heating | 21 | Active |
| US11130015B2 | Flywheel exerciser having a hybrid resistance system | Human Necessities | 1 | Active |
| US7223208B1 | Exercise machine comprising two hand grips which are provided with a damping device | Emerging Cross-Sectional Technologies | 1 | Expired |
| US7429234B2 | Oval track stepper | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Counts and citation impact are objective bibliographic measures.