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Method of and apparatus for indicating the geographical position of a pilot vehicle
Patent #: 4053893
Issued on: 10/11/1977
Inventor: Boyer
Vehicle location system
Patent #: 4083003
Issued on: 04/04/1978
Inventor: Haemmig
System for automatic vehicle location
Patent #: 4107689
Issued on: 08/15/1978
Inventor: Jellinek
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Vehicle locator system
Patent #: 4152693
Issued on: 05/01/1979
Inventor: Ashworth, Jr.
Auto theft detection system
Patent #: 4177466
Issued on: 12/04/1979
Inventor: Reagan
Data transmission system
Patent #: 4222052
Issued on: 09/09/1980
Inventor: Dunn
Electronic trip meter for an automotive vehicle
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Issued on: 05/03/1983
Inventor: Mori
Navigational aid autopilot
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Issued on: 01/24/1984
Inventor: Robinson , et al.
Electronic chart system
Patent #: 4428057
Issued on: 01/24/1984
Inventor: Setliff , et al.
Radio telephone with position transmission capability
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Issued on: 03/06/1984
Inventor: Ho , et al.
Navigation system and method
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Method and apparatus for automatic distress call signal transmission
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Issued on: 10/15/1985
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Navigation system including an integrated electronic chart display
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Issued on: 05/20/1986
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Security monitoring and tracking system
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Issued on: 03/17/1987
Inventor: Gray , et al.
Current location indication apparatus for use in an automotive vehicle
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Issued on: 04/21/1987
Inventor: Nakamura
Integrated cargo security system
Patent #: 4688244
Issued on: 08/18/1987
Inventor: Hannon , et al.
Mobile telephone location system
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Issued on: 10/13/1987
Inventor: Bini
Direction finding localization system
Patent #: 4728959
Issued on: 03/01/1988
Inventor: Maloney , et al.
Vehicle location system
Patent #: 4740792
Issued on: 04/26/1988
Inventor: Sagey , et al.
Stolen object location system
Patent #: 4742357
Issued on: 05/03/1988
Inventor: Rackley
Integrated cargo security system
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Issued on: 06/07/1988
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Global positioning system course acquisition code receiver
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Issued on: 06/28/1988
Inventor: Trimble
Cellular mobile radio credit card system
Patent #: 4776003
Issued on: 10/04/1988
Inventor: Harris
Method for accurately displaying positional information on a map
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Issued on: 12/13/1988
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Multi-antenna gas receiver for seismic survey vessels
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Issued on: 02/28/1989
Inventor: Counselman, III
Emergency vessel location system
Patent #: 4833477
Issued on: 05/23/1989
Inventor: Tendler
Trunked communication system with nationwide roaming capability
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Issued on: 05/23/1989
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Radiotelephone credit card call approval synchronization
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Issued on: 08/22/1989
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Vehicle location system
Patent #: 4891650
Issued on: 01/02/1990
Inventor: Sheffer
Method for accurately updating positional information provided on a digital map
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Issued on: 01/02/1990
Inventor: Gray, et al.
Vehicle status monitor and management system employing satellite communication
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Issued on: 01/30/1990
Inventor: DiLullo, et al.
System for the extended provision of cellular mobile radiotelephone service
Patent #: 4901340
Issued on: 02/13/1990
Inventor: Parker, et al.
Mobile transmitter/receiver
Patent #: 4907290
Issued on: 03/06/1990
Inventor: Crompton
Apparatus for locating and/or tracking stolen or missing vehicles and the like
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Issued on: 03/13/1990
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Method and apparatus for error-free digital data transmission during cellular telephone handoff, etc.
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Issued on: 03/27/1990
Inventor: Hop
Public cordless telephone
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Issued on: 08/28/1990
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Stolen vehicle recovery system
Patent #: 5003317
Issued on: 03/26/1991
Inventor: Gray, et al.
Tracking system
Patent #: 5014206
Issued on: 05/07/1991
Inventor: Scribner, et al.
System and method for remotely monitoring the connect/disconnect status of a multiple part vehicle
Patent #: 5025253
Issued on: 06/18/1991
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Vehicle locating system with Loran-C
Patent #: 5032845
Issued on: 07/16/1991
Inventor: Velasco
Cellular position locating system
Patent #: 5043736
Issued on: 08/27/1991
Inventor: Darnell, et al.
Navigation and tracking system
Patent #: 5045861
Issued on: 09/03/1991
Inventor: Duffett-Smith
Vehicle location system
Patent #: 5055851
Issued on: 10/08/1991
Inventor: Sheffer
System and method for monitoring and reporting out-of-route mileage for long haul trucks
Patent #: 5068656
Issued on: 11/26/1991
Inventor: Sutherland
Method and apparatus for communicating with radio telephones
Patent #: 5090050
Issued on: 02/18/1992
Inventor: Heffernan
Vehicle location system
Patent #: 5119102
Issued on: 06/02/1992
Inventor: Barnard
Beacon enhanced telecommunications system and method
Patent #: 5121126
Issued on: 06/09/1992
Inventor: Clagett
System for interfacing an alarm reporting device with a cellular radio transceiver
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Issued on: 07/14/1992
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Vehicle mounting apparatus of an automatic vehicle location system
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Issued on: 08/25/1992
Inventor: Park
Cellular telephone system and method for dynamically switching between call routing options
Patent #: 5142654
Issued on: 08/25/1992
Inventor: Sonberg, et al.
Geodetic surveying system using multiple GPS base stations
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Issued on: 10/13/1992
Inventor: Spradley, Jr., et al.
Method of selecting the cellular system with which a cellular mobile radiotelephone communicates
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Issued on: 10/27/1992
Inventor: Zicker
Vehicle location system having enhanced position location processing
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Issued on: 11/24/1992
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Vehicle locating and navigating system
Patent #: 5208756
Issued on: 05/04/1993
Inventor: Song
Vehicle tracking and security system
Patent #: 5223844
Issued on: 06/29/1993
Inventor: Mansell, et al.
Vehicle tracking system employing global positioning system (GPS) satellites
Patent #: 5225842
Issued on: 07/06/1993
Inventor: Brown, et al.
Navigation apparatus
Patent #: 5243529
Issued on: 09/07/1993
Inventor: Kashiwazaki
Method of precise position determination
Patent #: 5252982
Issued on: 10/12/1993
Inventor: Frei
Simulcast synchronization and equalization system and method therefor
Patent #: 5261118
Issued on: 11/09/1993
Inventor: Vanderspool, II, et al.
Vehicle locating and communicating method and apparatus using cellular telephone network
Patent #: 5299132
Issued on: 03/29/1994
Inventor: Wortham
GPS precision approach and landing system for aircraft
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Issued on: 05/10/1994
Inventor: Brown
Passive high accuracy geolocation system and method
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Issued on: 05/31/1994
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Networked differential GPS system
Patent #: 5323322
Issued on: 06/21/1994
Inventor: Mueller, et al.
Cellular telephone location system
Patent #: 5327144
Issued on: 07/05/1994
Inventor: Stilp, et al.
Personal security system
Patent #: 5334974
Issued on: 08/02/1994
Inventor: Simms, et al.
Communication system and method for determining the location of a transponder unit
Patent #: 5365516
Issued on: 11/15/1994
Inventor: Jandrell
Portable locating system
Patent #: 5389934
Issued on: 02/14/1995
Inventor: Kass
Position reporting emergency location system
Patent #: 5392052
Issued on: 02/21/1995
Inventor: Eberwine
Trunked communication system with variable communication capability support for roamers
Patent #: 5392458
Issued on: 02/21/1995
Inventor: Sasuta, et al.
Remote vehicle communications system and method
Patent #: 5396540
Issued on: 03/07/1995
Inventor: Gooch
Advance notification system and method
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Issued on: 03/21/1995
Inventor: Jones, et al.
Navigational system for trip routing
Patent #: 5406491
Issued on: 04/11/1995
Inventor: Lima
No-outage GPS/commercial RF positioning system
Patent #: 5422813
Issued on: 06/06/1995
Inventor: Schuchman, et al.
Portable personal navigation tracking system
Patent #: 5422816
Issued on: 06/06/1995
Inventor: Sprague, et al.
System for locating and communicating with mobile vehicles
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Issued on: 07/11/1995
Inventor: Rimer
Apparatus and method of notifying a recipient of an unscheduled delivery
Patent #: 5444444
Issued on: 08/22/1995
Inventor: Ross
Vehicle navigation system which automatically adjusts to a changed travel route
Patent #: 5463554
Issued on: 10/31/1995
Inventor: Araki, et al.
Method and apparatus for tracking a moving object
Patent #: 5587715
Issued on: 12/24/1996
Inventor: Lewis
Method and system for determining the position of a mobile receiver Patent #: 5600706
Issued on: 02/04/1997
Inventor: Dunn, et al.
June 15, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
