Assignee
LOJACK CORP
US16 patents
Top patents by PatentIndex Score
US6665613B2Dec 16, 2003
Method of and apparatus for dynamically GoeFencing movable vehicle and other equipment and the like
LOJACK CORP365 citations97
US6847825B1Jan 25, 2005
Method and system for portable cellular phone voice communication and positional location data communication
LOJACK CORP140 citations95
US5917423AJun 29, 1999
Vehicles tracking transponder system and transponding method
LOJACK CORP237 citations94
US7106211B2Sep 12, 2006
Method of and apparatus for vehicle inspection and the like with security for the inspector and facility for radio tracking of a vehicle attempting escape from the inspector
LOJACK CORP21 citations91
US6229988B1May 8, 2001
Method of and apparatus for battery and similar power source conservation in periodically operable portable and related radio receivers and the like
LOJACK CORP100 citations90
US5704008ADec 30, 1997
Method of and apparatus for motor vehicle security assurance employing voice recognition control of vehicle operation
LOJACK CORP99 citations88
US9112674B2Aug 18, 2015
Synchronization system and method for achieving low power battery operation of a vehicle locating unit in a stolen vehicle recovery system which receives periodic transmissions
LOJACK CORP5 citations82
US9088398B2Jul 21, 2015
Low-power wireless vehicle locating unit
LOJACK CORP6 citations77
US10212663B2Feb 19, 2019
Power management system and method for vehicle locating unit
LOJACK CORP2 citations71
US9565636B2Feb 7, 2017
Power management system and method for vehicle locating unit
LOJACK CORP4 citations71
US9480037B2Oct 25, 2016
Synchronization system and method for achieving low power battery operation of a vehicle locating unit in a stolen vehicle recovery system which receives periodic transmissions
LOJACK CORP4 citations71
US9592794B2Mar 14, 2017
Recovery system with repeating communication capabilities
LOJACK CORP1 citations62
US10135407B1Nov 20, 2018
High efficiency transmit-receive switches
LOJACK CORP3 citations61
US10243766B2Mar 26, 2019
Systems and methods for determining and compensating for offsets in RF communications
LOJACK CORP1 citations52
US10286874B2May 14, 2019
Recovery system with repeating communication capabilities
LOJACK CORP0 citations51
US9661456B2May 23, 2017
Low-power wireless vehicle locating unit
LOJACK CORP0 citations45