Issued Patents All Time
Showing 1–16 of 16 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11166671 | Differentiation of fluid volume change | Mitchell E. Levinson, Eugene Mark Shusterman | 2021-11-09 |
| 8874181 | Oximeter ambient light cancellation | Ethan Petersen, Bradford B. Chew | 2014-10-28 |
| 8315684 | Oximeter ambient light cancellation | Ethan Petersen, Bradford B. Chew | 2012-11-20 |
| 8195262 | Switch-mode oximeter LED drive with a single inductor | Bradford B. Chew, Ethan Petersen | 2012-06-05 |
| 7499740 | Techniques for detecting heart pulses and reducing power consumption in sensors | Brad Nordstrom, Ethan Petersen | 2009-03-03 |
| 7400919 | Oximeter ambient light cancellation | Ethan Petersen, Bradford B. Chew | 2008-07-15 |
| 7373192 | Oximeter red and IR zero calibration control | Bradford B. Chew, Ethan Petersen | 2008-05-13 |
| 7355539 | Multi-bit ADC with sigma-delta modulation | Ethan Petersen, Bradford B. Chew | 2008-04-08 |
| 7215985 | Oximeter cross-talk reduction | Ethan Petersen, Bradford B. Chew | 2007-05-08 |
| 7212847 | Delta-sigma modulator for outputting analog representation of physiological signal | Ethan Petersen, Bradford B. Chew | 2007-05-01 |
| 7190985 | Oximeter ambient light cancellation | Ethan Petersen, Bradford B. Chew | 2007-03-13 |
| 7162288 | Techniques for detecting heart pulses and reducing power consumption in sensors | Brad Nordstrom, Ethan Petersen | 2007-01-09 |
| 7142142 | Multi-bit ADC with sigma-delta modulation | Ethan Petersen, Bradford B. Chew | 2006-11-28 |
| 7120479 | Switch-mode oximeter LED drive with a single inductor | Bradford B. Chew, Ethan Petersen | 2006-10-10 |
| 7120480 | LED forward voltage estimation in pulse oximeter | Bradford B. Chew, Ethan Peterson | 2006-10-10 |
| 6356774 | Oximeter sensor with encoded temperature characteristic | Michael Bernstein, Michael E. Fein, Willem Crone, Paul D. Mannheimer, Bradford B. Chew +1 more | 2002-03-12 |