Inventor · disambiguated record
William Duvall
Also filed as: DUVALL II WILLIAM R · DUVALL JR WILLIAM ROBERT · DUVALL WILLIAM · DUVALL WILLIAM R
12 granted patents·1 pending application·1,876 citations·filing 1993–2022
94Inventor score
Top patents by PatentIndex Score
13 records- 0198US6665613B2Method of and apparatus for dynamically GoeFencing movable vehicle and other equipment and the likeLOJACK CORP·Filed 2001·Granted Dec 16, 2003·365 cites·17 claims
- 0296US6005561AInteractive information delivery system3DO CO·Filed 1994·Granted Dec 21, 1999·753 cites·22 claims
- 0394US6876858B1Methods of and system for portable cellular phone voice communication and positional location data communication using the cellular phone network control channelLOJACK OPERATING CO LP·Filed 1999·Granted Apr 5, 2005·176 cites·15 claims
- 0492US5917423AVehicles tracking transponder system and transponding methodLOJACK CORP·Filed 1997·Granted Jun 29, 1999·237 cites·11 claims
- 0592US5704008AMethod of and apparatus for motor vehicle security assurance employing voice recognition control of vehicle operationLOJACK CORP·Filed 1993·Granted Dec 30, 1997·99 cites·21 claims
- 0691US6847825B1Method and system for portable cellular phone voice communication and positional location data communicationLOJACK CORP·Filed 2000·Granted Jan 25, 2005·140 cites·12 claims
- 0782US7561102B2Method of and system for expanding localized missing customer-vehicle law enforcement-aided VHF recovery networks with location-on-demand supplemental service features via such networks for improved law enforcement-aided recovery, and via the internet for providing supplemental customer service featuresLOJACK OPERATING CO LP·Filed 2004·Granted Jul 14, 2009·53 cites·8 claims
- 0873US8169328B2Proximity monitoring and locating systemDUVALL WILLIAM R·Filed 2009·Granted May 1, 2012·13 cites·33 claims
- 0968US8013735B2Asset recovery systemLOJACK OPERATING CO LP·Filed 2009·Granted Sep 6, 2011·11 cites·29 claims
- 1063US7106211B2Method 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 inspectorLOJACK CORP·Filed 2003·Granted Sep 12, 2006·21 cites·22 claims
- 1152US7536169B2Method of and apparatus for utilizing geographically spread cellular radio networks to supplement more geographically limited stolen vehicle recovery radio networks in activation of radio tracking and recovery of such vehiclesLOJACK OPERATING CO LP·Filed 2002·Granted May 19, 2009·8 cites·24 claims
- 1249US2024349021A1Cargo monitoring, tracking and recovery systemOPTIO TECH LLC·Filed 2022·Application pending·0 cites
- 1344US8086215B2Method of and apparatus for utilizing geographically spread cellular radio networks to supplement more geographically limited stolen vehicle recovery networks in activation of radio tracking and recovery of such vehiclesDUVALL WILLIAM·Filed 2009·Granted Dec 27, 2011·0 cites·6 claims
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