Chao-Ken Chen
18Patents
11h-index
2Co-inventors
62Inventor score
Filing activity: Oct 1, 1993 → Mar 14, 2024
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US7980519B2 | Telescopic adjustable positioning device | Emerging Cross-Sectional Technologies | 46 | Active |
| US6209840A | Mechanism for the relative positioning of chair arm | Mechanical Engineering; Lighting; Heating | 33 | Expired |
| US5975640A | Adjustable armrest of an office chair | Human Necessities | 26 | Expired |
| US6299253A | Telescopic positioning mechanism for chair backrest | Human Necessities | 21 | Expired |
| US6213556A | Extendible chair arm | Human Necessities | 21 | Expired |
| US8496295B2 | Rotary elbow with double shaft | Mechanical Engineering; Lighting; Heating | 17 | Active |
| US7140306B2 | Auxiliary table plate device with elevation adjusting device | Human Necessities | 16 | Expired |
| USD390713S | Chair | General | 15 | Expired |
| USD479054S1 | Chair | General | 12 | Expired |
| USD478734S1 | Chair | General | 12 | Expired |
| USD373030S | Chair | General | 11 | Expired |
| US6092474A | Computer desk with pneumatic elevation control means | Human Necessities | 10 | Expired |
| US8641007B2 | Exhibiting rack | Mechanical Engineering; Lighting; Heating | 7 | Active |
| US7735537B2 | Portable wall-partition | Fixed Constructions | 6 | Active |
| USD1057852S1 | Water table | General | 3 | Active |
| USD431134S | Table stand | General | 2 | Expired |
| US8251453B2 | Adjustable armrest support of chair | Human Necessities | 2 | Active |
| US7198326B2 | Desk and chair interchangeable device | Human Necessities | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.