Frank Chen
26Patents
14h-index
5Co-inventors
74Inventor score
Filing activity: Aug 6, 1976 → Apr 14, 2004
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| USD521172S1 | Lighting apparatus | General | 73 | Expired |
| USD470962S1 | Lampshade | General | 53 | Expired |
| US5886686A | Keyboard with replaceable cursor control means | Physics | 41 | Expired |
| US5938352A | Keyboard casing with a wrist pad | Electricity | 29 | Expired |
| USD410454S | Keyboard | General | 29 | Expired |
| US5826839A | Keyboard with wrist support | Electricity | 28 | Expired |
| US5739776A | Key switch arrangement for computer keyboards | Electricity | 25 | Expired |
| USD441114S | Desk lamp | General | 24 | Expired |
| USD370477S | Keyboard | General | 23 | Expired |
| USD387050S | Keyboard | General | 21 | Expired |
| US4121217A | Data transmission network interface unit | Electricity | 18 | Expired |
| USD372910S | Keyboard | General | 17 | Expired |
| USD417924S | Desk lamp | General | 17 | Expired |
| USD397105S | Keyboard | General | 17 | Expired |
| US5603480A | Keyboard stand mounting structure | Emerging Cross-Sectional Technologies | 14 | Expired |
| USD373351S | Keyboard | General | 13 | Expired |
| US7075979B2 | Modem relay over a packet network | Electricity | 12 | Expired |
| USD402385S | Desk lamp | General | 10 | Expired |
| US6728108B2 | Access device of memory card | Physics | 9 | Expired |
| USD500380S1 | Decoration lamp | General | 7 | Expired |
| USD392278S | Keyboard | General | 6 | Expired |
| USD432695S | Lamp | General | 5 | Expired |
| US6027233A | Counterbalanced lamp having a resiliently bowed spring lever | Mechanical Engineering; Lighting; Heating | 5 | Expired |
| USD394914S | Desk lamp | General | 4 | Expired |
| USD415298S | Decorative lamp | General | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.