Inventor
RAMANATHAN NARAYANAN V
US15 patents
Patents
15 patentsUS11208134B2Dec 28, 2021
Monitoring system capable of classifying items added to a shopping cart
GATEKEEPER SYSTEMS INC17 citations94
US9731744B2Aug 15, 2017
Estimating motion of wheeled carts
GATEKEEPER SYSTEMS INC30 citations94
US10232869B2Mar 19, 2019
Navigation systems for wheeled carts
GATEKEEPER SYSTEMS INC15 citations93
US12033481B2Jul 9, 2024
Shopping basket monitoring using computer vision and machine learning
GATEKEEPER SYSTEMS INC6 citations85
US11203370B2Dec 21, 2021
Shopping cart monitoring using computer vision
GATEKEEPER SYSTEMS INC5 citations84
US10546502B2Jan 28, 2020
Estimating motion of wheeled carts
GATEKEEPER SYSTEMS INC4 citations84
US11990009B2May 21, 2024
Shopping basket monitoring using computer vision
GATEKEEPER SYSTEMS INC2 citations73
US11183070B2Nov 23, 2021
Estimating motion of wheeled carts
GATEKEEPER SYSTEMS INC3 citations73
US11414117B2Aug 16, 2022
Anti-theft system that uses shopping cart location and vibration data
GATEKEEPER SYSTEMS INC1 citations72
US10858024B2Dec 8, 2020
Navigation systems for wheeled carts
GATEKEEPER SYSTEMS INC4 citations72
US12482334B2Nov 25, 2025
Shopping basket monitoring using computer vision
GATEKEEPER SYSTEMS INC0 citations62
US12131647B2Oct 29, 2024
Estimating motion of wheeled carts
GATEKEEPER SYSTEMS INC0 citations62
US12106644B2Oct 1, 2024
Shopping basket monitoring using computer vision and machine learning
GATEKEEPER SYSTEMS INC1 citations60
US12099107B2Sep 24, 2024
Dual magnetometer calibration
GATEKEEPER SYSTEMS INC0 citations56
US11675040B2Jun 13, 2023
Dual magnetometer calibration
GATEKEEPER SYSTEMS INC1 citations56