Daniel Francis
13Patents
6h-index
19Co-inventors
59Inventor score
Filing activity: Aug 16, 1995 → Mar 30, 2006
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5914709A | User input device for a computer system | Physics | 181 | Expired |
| US6351260B1 | User input device for a computer system | Physics | 85 | Expired |
| US7445605B2 | Detection of apex motion for monitoring cardiac dysfunction | Human Necessities | 39 | Expired |
| US6181842A | Position digitizer waveguide array with integrated collimating optics | Physics | 38 | Expired |
| US6445495B1 | Tunable-gain lasing semiconductor optical amplifier | Electricity | 22 | Expired |
| US6647041B1 | Electrically pumped vertical optical cavity with improved electrical performance | Electricity | 11 | Expired |
| US7149236B1 | Optoelectronic semiconductor device | Electricity | 5 | Expired |
| US6980577B1 | Vertical laser cavity with a non-planar top mirror | Electricity | 4 | Expired |
| US7553690B2 | Starved source diffusion for avalanche photodiode | Emerging Cross-Sectional Technologies | 4 | Expired |
| US6977424B1 | Electrically pumped semiconductor active region with a backward diode, for enhancing optical signals | Electricity | 2 | Expired |
| US7099075B2 | Tunable segmented distributed bragg reflector for linear optical amplifier | Electricity | 1 | Expired |
| US5627852A | Semiconductor laser geometry for broad-angle far-field addressing | Electricity | 1 | Expired |
| US7057803B2 | Linear optical amplifier using coupled waveguide induced feedback | Electricity | 0 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.