Cheng-Nan Chen
11Patents
6h-index
3Co-inventors
55Inventor score
Filing activity: Apr 21, 1992 → Jul 21, 2010
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD622641S1 | Wheelchair | General | 31 | Expired |
| US5749278A | Mold-pressing device | Emerging Cross-Sectional Technologies | 21 | Expired |
| USRE38219E1 | Mold-pressing device | General | 15 | Expired |
| US8419047B2 | Folding device for wheelchair | Human Necessities | 12 | Active |
| US6836397B2 | Electrostatic discharge protection apparatus for a circuit board | Electricity | 7 | Expired |
| US6219925A | Punch having changeable punching member | Emerging Cross-Sectional Technologies | 7 | Expired |
| US7012796B2 | Electrostatic discharge protection apparatus | Physics | 5 | Expired |
| US5343004A | Non-sparking rotatable switch apparatus | Electricity | 5 | Expired |
| US6189220A | Punch having changeable punching member | Performing Operations; Transporting | 4 | Expired |
| US6324954A | Device for actuating a punch | Emerging Cross-Sectional Technologies | 1 | Expired |
| US5196986A | Capacitor | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.