William Shea
16Patents
11h-index
11Co-inventors
65Inventor score
Filing activity: Sep 28, 1999 → Jan 20, 2017
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US6356774B1 | Oximeter sensor with encoded temperature characteristic | Human Necessities | 397 | Expired |
| US7162288B2 | Techniques for detecting heart pulses and reducing power consumption in sensors | Human Necessities | 112 | Expired |
| US7400919B2 | Oximeter ambient light cancellation | Human Necessities | 68 | Active |
| US7499740B2 | Techniques for detecting heart pulses and reducing power consumption in sensors | Human Necessities | 38 | Active |
| US7355539B2 | Multi-bit ADC with sigma-delta modulation | Electricity | 22 | Active |
| US7215985B2 | Oximeter cross-talk reduction | Human Necessities | 22 | Expired |
| US7120479B2 | Switch-mode oximeter LED drive with a single inductor | Human Necessities | 17 | Expired |
| US7373192B2 | Oximeter red and IR zero calibration control | Human Necessities | 16 | Expired |
| US7212847B2 | Delta-sigma modulator for outputting analog representation of physiological signal | Electricity | 13 | Expired |
| US7142142B2 | Multi-bit ADC with sigma-delta modulation | Electricity | 13 | Expired |
| US7120480B2 | LED forward voltage estimation in pulse oximeter | Human Necessities | 11 | Expired |
| US7190985B2 | Oximeter ambient light cancellation | Human Necessities | 9 | Expired |
| US8315684B2 | Oximeter ambient light cancellation | Human Necessities | 3 | Active |
| US11166671B2 | Differentiation of fluid volume change | Human Necessities | 2 | Active |
| US8195262B2 | Switch-mode oximeter LED drive with a single inductor | Human Necessities | 2 | Active |
| US8874181B2 | Oximeter ambient light cancellation | Human Necessities | 0 | Active |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.