James Chen
43Patents
17h-index
10Co-inventors
78Inventor score
Filing activity: Sep 9, 1982 → Feb 1, 2021
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6500101B1 | Adjustable dumbbell | Human Necessities | 96 | Expired |
| US6149558A | Adjustable dumbbell | Human Necessities | 69 | Expired |
| US6196952A | Adjustable dumbbell | Human Necessities | 61 | Expired |
| USD422654S | Adjustable dumbbell | General | 55 | Expired |
| US6186928A | Dumbell adjustable in weight | Human Necessities | 51 | Expired |
| USD608560S1 | Bed frame | General | 46 | Expired |
| US5554083A | Multipurpose exercise machine having an arm drilling device | Human Necessities | 45 | Expired |
| USD608561S1 | Bed frame | General | 38 | Expired |
| USD608562S1 | Bed frame | General | 33 | Expired |
| US6926644B2 | Folding exercise treadmill with front inclination | Human Necessities | 29 | Expired |
| US8386558B2 | Cross-pollination synchronization of data | Emerging Cross-Sectional Technologies | 27 | Active |
| US7238146B1 | Elliptical exercise apparatus | Human Necessities | 25 | Active |
| US6652420B2 | Grip structure of exercise device | Human Necessities | 25 | Expired |
| USD278946S | Thong sandal | General | 23 | Expired |
| US6575882B2 | Exercise device having weights and safety mechanism to maintain weights in place | Human Necessities | 22 | Expired |
| US6460612B1 | Heat transfer device with a self adjusting wick and method of manufacturing same | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US9526938B2 | Multifunctional leg training machine | Human Necessities | 21 | Active |
| US5989159A | Exercise device | Human Necessities | 14 | Expired |
| US6102833A | Device for exercising waist and legs | Human Necessities | 13 | Expired |
| US9808663B2 | Multifunctional kinetic mechanism | Human Necessities | 13 | Active |
| USD502230S1 | Exercise machine | General | 10 | Expired |
| US7445583B2 | Pivotal display for stationary exercise bicycle | Human Necessities | 10 | Active |
| US7087434B2 | Automatic portable formaldehyde analyzer | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6565494B1 | Portable and multifunctional exercise device | Emerging Cross-Sectional Technologies | 9 | Expired |
| US6641509B1 | Multifunctional exercise device | Human Necessities | 7 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.