P

Inventor

NARAYANAN RAMKRISHNAN

US11 patents
⚠️ This page may combine multiple inventors who share the name “NARAYANAN RAMKRISHNAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

SPRY HEALTH INC

4 patents
US11259753B2Mar 1, 2022

Systems and methods for detecting photoplethysmographic device usage

SPRY HEALTH INC4 citations80
US10638982B2May 5, 2020

Systems and methods for non-invasive blood pressure measurement

SPRY HEALTH INC6 citations80
US10736552B2Aug 11, 2020

Systems and methods for biological metrics measurement

SPRY HEALTH INC11 citations78
US9943267B2Apr 17, 2018

Systems and methods for non-invasive respiratory rate measurement

SPRY HEALTH INC3 citations69

ITAMAR MEDICAL SPRY 2021 LP

4 patents
US12121371B2Oct 22, 2024

Systems and methods for non-invasive blood pressure measurement

ITAMAR MEDICAL SPRY 2021 LP0 citations58
US12004879B2Jun 11, 2024

Systems and methods for detecting photoplethysmographic device usage

ITAMAR MEDICAL SPRY 2021 LP0 citations58
US11963799B2Apr 23, 2024

Systems and methods for non-invasive blood pressure measurement

ITAMAR MEDICAL SPRY 2021 LP0 citations58
US12318198B2Jun 3, 2025

Systems and methods for biological metrics measurement

ITAMAR MEDICAL SPRY 2021 LP0 citations53

ECHO LABS INC

1 patent
US9706964B2Jul 18, 2017

Systems and methods for non-invasive blood pressure measurement

ECHO LABS INC13 citations77

EIGEN INC

1 patent
US9131922B2Sep 15, 2015

Calibration for 3D reconstruction of medical images from a sequence of 2D images

EIGEN INC6 citations72

SURI JASJIT S

1 patent
US8425418B2Apr 23, 2013

Method of ultrasonic imaging and biopsy of the prostate

SURI JASJIT S6 citations72