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Gatekeeper Systems Inc patents

Recent patent applications related to Gatekeeper Systems Inc. Gatekeeper Systems Inc is listed as an Agent/Assignee. Note: Gatekeeper Systems Inc may have other listings under different names/spellings. We're not affiliated with Gatekeeper Systems Inc, we're just tracking patents.

ARCHIVE: New 2017 2016 2015 2014 2013 2012 2011 2010 2009 | Company Directory "G" | Gatekeeper Systems Inc-related inventors




Date Gatekeeper Systems Inc patents (updated weekly) - BOOKMARK this page
04/13/17Monitoring usage or status of cart retrievers
03/09/17Estimating motion of wheeled carts
03/09/17Magnetometer and accelerometer calibration for cart navigation system
02/23/17Wheels for non-motorized vehicles
11/17/16System with wheel assembly that communicates with display unit of human propelled cart
10/06/16System for tracking human propelled carts
09/15/16Loop antenna fixtures and methods
09/08/16Low-energy consumption location of movable objects
01/28/16Monitoring usage or status of cart retrievers
12/03/15Wheel skid detection during mechanized cart retrieval
11/12/15System for detecting unauthorized store exit events
08/27/15Brake mechanism for a non-motorized wheeled vehicle
07/16/15Power generation wheeled objects
09/11/14Wheels for non-motorized vehicles
03/06/14Cart connection assemblies and methods
03/06/14Non-motorized vehicle wheel replacement treads and methods
09/26/13Zone-based control of cart usage
09/12/13System for detecting unauthorized store exit events
08/22/13Cart braking control during mechanized cart retrieval
07/18/13Solar powered transmitter
03/28/13Non-motorized vehicle wheel replacement treads and methods
02/09/12Navigation wheeled objects
11/17/11Systems and methods for locating and controlling powered vehicles
09/29/11Solar powered transmitter
02/17/11Brake mechanism for a non-motorized wheeled vehicle
06/17/10Systems and methods for power storage and management from intermittent power sources







ARCHIVE: New 2017 2016 2015 2014 2013 2012 2011 2010 2009



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