Assignee
GATEKEEPER SYSTEMS INC
US·61 granted patents·7 pending applications·972 citations·filing 2006–2024
Top patents by PatentIndex Score
68 records- 0199US11208134B2Monitoring system capable of classifying items added to a shopping cartGATEKEEPER SYSTEMS INC·Filed 2021·Granted Dec 28, 2021·17 cites·36 claims
- 0299US8700230B1Cart containment system with integrated cart display unitGATEKEEPER SYSTEMS INC·Filed 2013·Granted Apr 15, 2014·80 cites·31 claims
- 0399US8046160B2Navigation systems and methods for wheeled objectsGATEKEEPER SYSTEMS INC·Filed 2006·Granted Oct 25, 2011·158 cites·47 claims
- 0499US7944368B2Systems and methods for locating and controlling powered vehiclesGATEKEEPER SYSTEMS INC·Filed 2006·Granted May 17, 2011·131 cites·44 claims
- 0598US9731744B2Estimating motion of wheeled cartsGATEKEEPER SYSTEMS INC·Filed 2016·Granted Aug 15, 2017·30 cites·23 claims
- 0698US8578984B2Non-motorized vehicle wheel replacement treads and methodsGATEKEEPER SYSTEMS INC·Filed 2012·Granted Nov 12, 2013·31 cites·24 claims
- 0798US8570171B2System for detecting unauthorized store exit events using signals detected by shopping cart wheels unitsGATEKEEPER SYSTEMS INC·Filed 2013·Granted Oct 29, 2013·26 cites·30 claims
- 0897US11203370B2Shopping cart monitoring using computer visionGATEKEEPER SYSTEMS INC·Filed 2021·Granted Dec 21, 2021·5 cites·21 claims
- 0997US10745040B2Motorized cart retriever for monitoring cart statusGATEKEEPER SYSTEMS INC·Filed 2018·Granted Aug 18, 2020·7 cites·19 claims
- 1097US9963162B1Cart monitoring system supporting unicast and multicast command transmissions to wheel assembliesGATEKEEPER SYSTEMS INC·Filed 2018·Granted May 8, 2018·11 cites·20 claims
- 1197US9606238B2Low-energy consumption location of movable objectsGATEKEEPER SYSTEMS INC·Filed 2016·Granted Mar 28, 2017·44 cites·30 claims
- 1297US9322658B2Wheel skid detection during mechanized cart retrievalGATEKEEPER SYSTEMS INC·Filed 2015·Granted Apr 26, 2016·18 cites·25 claims
- 1397US9205702B2Non-motorized vehicle wheel replacement treads and methodsGATEKEEPER SYSTEMS INC·Filed 2013·Granted Dec 8, 2015·23 cites·19 claims
- 1497US8718923B2Object cluster detection and estimationGATEKEEPER SYSTEMS INC·Filed 2013·Granted May 6, 2014·14 cites·24 claims
- 1596US9669659B2Brake mechanism for a non-motorized wheeled vehicleGATEKEEPER SYSTEMS INC·Filed 2015·Granted Jun 6, 2017·26 cites·39 claims
- 1696US9630639B2Navigation systems and methods for wheeled objectsGATEKEEPER SYSTEMS INC·Filed 2014·Granted Apr 25, 2017·25 cites·16 claims
- 1796US9403548B2Monitoring usage or status of cart retrieversGATEKEEPER SYSTEMS INC·Filed 2015·Granted Aug 2, 2016·35 cites·21 claims
- 1895US10232869B2Navigation systems for wheeled cartsGATEKEEPER SYSTEMS INC·Filed 2018·Granted Mar 19, 2019·15 cites·21 claims
- 1995US10023216B2Cart monitoring system capable of authorizing cart exit eventsGATEKEEPER SYSTEMS INC·Filed 2018·Granted Jul 17, 2018·10 cites·20 claims
- 2095US9637151B2System for detecting unauthorized store exit eventsGATEKEEPER SYSTEMS INC·Filed 2015·Granted May 2, 2017·11 cites·20 claims
- 2195US7658247B2Systems and methods for power storage and management from intermittent power sourcesGATEKEEPER SYSTEMS INC·Filed 2006·Granted Feb 9, 2010·74 cites·46 claims
- 2294US11990009B2Shopping basket monitoring using computer visionGATEKEEPER SYSTEMS INC·Filed 2021·Granted May 21, 2024·2 cites·31 claims
- 2394US11183070B2Estimating motion of wheeled cartsGATEKEEPER SYSTEMS INC·Filed 2020·Granted Nov 23, 2021·3 cites·24 claims
- 2494US9358835B2Wheels for non-motorized vehiclesGATEKEEPER SYSTEMS INC·Filed 2014·Granted Jun 7, 2016·10 cites·28 claims
- 2594US8571778B2Cart braking control during mechanized cart retrievalGATEKEEPER SYSTEMS INC·Filed 2013·Granted Oct 29, 2013·15 cites·17 claims
- 2693US10189494B2Cart monitoring system with wheel assembly capable of visually signaling cart statusGATEKEEPER SYSTEMS INC·Filed 2018·Granted Jan 29, 2019·6 cites·13 claims
- 2793US10101458B2Low-energy consumption location of movable objectsGATEKEEPER SYSTEMS INC·Filed 2017·Granted Oct 16, 2018·11 cites·21 claims
- 2893US10001541B2Magnetometer and accelerometer calibration for cart navigation systemGATEKEEPER SYSTEMS INC·Filed 2016·Granted Jun 19, 2018·6 cites·21 claims
- 2993US9676405B2System with handheld mobile control unit for controlling shopping cart wheel assembliesGATEKEEPER SYSTEMS INC·Filed 2016·Granted Jun 13, 2017·4 cites·16 claims
- 3093US7870916B2Systems and methods for power storage and management from intermittent power sourcesGATEKEEPER SYSTEMS INC·Filed 2010·Granted Jan 18, 2011·25 cites·33 claims
- 3191US9758185B2Wheel assembly and antenna design for cart tracking systemGATEKEEPER SYSTEMS INC·Filed 2013·Granted Sep 12, 2017·8 cites·21 claims
- 3289US9914470B2System with wheel assembly that communicates with display unit of human propelled cartGATEKEEPER SYSTEMS INC·Filed 2016·Granted Mar 13, 2018·4 cites·28 claims
- 3389US9586606B2Power generation systems and methods for wheeled objectsGATEKEEPER SYSTEMS INC·Filed 2014·Granted Mar 7, 2017·7 cites·24 claims
- 3489US8894086B2Cart connection assemblies and methodsGATEKEEPER SYSTEMS INC·Filed 2013·Granted Nov 25, 2014·28 cites·19 claims
- 3589US8364105B2Solar powered transmitterGATEKEEPER SYSTEMS INC·Filed 2011·Granted Jan 29, 2013·10 cites·35 claims
- 3687US10858024B2Navigation systems for wheeled cartsGATEKEEPER SYSTEMS INC·Filed 2019·Granted Dec 8, 2020·4 cites·19 claims
- 3787US10546502B2Estimating motion of wheeled cartsGATEKEEPER SYSTEMS INC·Filed 2017·Granted Jan 28, 2020·4 cites·17 claims
- 3886US9845072B1Direction crossing detector for containment boundaryGATEKEEPER SYSTEMS INC·Filed 2017·Granted Dec 19, 2017·5 cites·24 claims
- 3986US2025140120A1Estimating motion of wheeled cartsGATEKEEPER SYSTEMS INC·Filed 2024·Application pending·0 cites
- 4085US12482334B2Shopping basket monitoring using computer visionGATEKEEPER SYSTEMS INC·Filed 2024·Granted Nov 25, 2025·0 cites·22 claims
- 4185US12106644B2Shopping basket monitoring using computer vision and machine learningGATEKEEPER SYSTEMS INC·Filed 2023·Granted Oct 1, 2024·1 cites·20 claims
- 4285US11230313B2System for monitoring and controlling shopping cart usageGATEKEEPER SYSTEMS INC·Filed 2021·Granted Jan 25, 2022·1 cites·28 claims
- 4385US10219136B2Systems with buried antennas for bi-directional communication with wheeled vehiclesGATEKEEPER SYSTEMS INC·Filed 2017·Granted Feb 26, 2019·4 cites·31 claims
- 4485US9783218B2Zone-based command transmissions to cart wheel assembliesGATEKEEPER SYSTEMS INC·Filed 2013·Granted Oct 10, 2017·5 cites·22 claims
- 4584US11414117B2Anti-theft system that uses shopping cart location and vibration dataGATEKEEPER SYSTEMS INC·Filed 2020·Granted Aug 16, 2022·1 cites·22 claims
- 4684US10730541B2Navigation systems and methods for wheeled objectsGATEKEEPER SYSTEMS INC·Filed 2017·Granted Aug 4, 2020·1 cites·22 claims
- 4784US10227082B2Power generation systems and methods for wheeled objectsGATEKEEPER SYSTEMS INC·Filed 2017·Granted Mar 12, 2019·2 cites·18 claims
- 4883US12033481B2Shopping basket monitoring using computer vision and machine learningGATEKEEPER SYSTEMS INC·Filed 2019·Granted Jul 9, 2024·6 cites·31 claims
- 4982US12596135B2Wheel capable of detecting direction of rotationGATEKEEPER SYSTEMS INC·Filed 2024·Granted Apr 7, 2026·0 cites·18 claims
- 5080US11675040B2Dual magnetometer calibrationGATEKEEPER SYSTEMS INC·Filed 2020·Granted Jun 13, 2023·1 cites·17 claims
Showing the top 50 of 68 patent records by PatentIndex Score.
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