Inventor · Union City, CA, US

Ethan Petersen

49Patents
13h-index
18Co-inventors
74Inventor score

Filing activity: Feb 25, 2004 → Jan 22, 2021

Most-cited inventions

PatentTitleAreaCited byStatus
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
US9560994B2 Pulse oximeter with adaptive power conservation Human Necessities 26 Active
US7355539B2 Multi-bit ADC with sigma-delta modulation Electricity 22 Active
US7215985B2 Oximeter cross-talk reduction Human Necessities 22 Expired
US8863540B2 HVAC system controlled by a battery management system Emerging Cross-Sectional Technologies 19 Active
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
US11806517B2 Impeller displacement based flow estimation Human Necessities 16 Active
US8750954B2 Medical monitoring patch device and methods Emerging Cross-Sectional Technologies 16 Active
US8827890B2 Touch screen interface and infrared communication system integrated into a battery Emerging Cross-Sectional Technologies 14 Active
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
US8204567B2 Signal demodulation Human Necessities 11 Active
US11224737B2 Blood pump controllers and methods of use for improved energy efficiency Electricity 10 Active
US7190985B2 Oximeter ambient light cancellation Human Necessities 9 Expired
US8603772B2 Particle sensor with wide linear range Physics 8 Active
US9805863B2 Magnetic power transmission utilizing phased transmitter coil arrays and phased receiver coil arrays Electricity 7 Active
US9997928B2 Self-tuning resonant power transfer systems Electricity 5 Active
US8315684B2 Oximeter ambient light cancellation Human Necessities 3 Active
US10525181B2 Resonant power transfer system and method of estimating system state Electricity 2 Active
US10200133B2 Touch screen interface and infrared communication system integrated into a battery Emerging Cross-Sectional Technologies 2 Active
US8195262B2 Switch-mode oximeter LED drive with a single inductor Human Necessities 2 Active
US10383990B2 Variable capacitor for resonant power transfer systems Electricity 2 Active

Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.