Inductive Signature Technologies, Inc.

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6999886 Vehicle speed estimation using inductive vehicle detection systemsExpiredSep 17, 03Feb 14, 06[G08G]
2006/0017,588 Congestion clockAbandonedJul 23, 04Jan 26, 06[G08G]
2006/0020,468 Telephone mapping and traveler information dissemination systemAbandonedJul 23, 04Jan 26, 06[G10L]
6988052 Normalization of inductive vehicle detector outputsExpiredApr 04, 05Jan 17, 06[G06F]
6917308 Surface-mount traffic sensorsExpiredApr 29, 03Jul 12, 05[G08G]
6911829 Inductive signature measurement circuitExpiredJul 07, 03Jun 28, 05[H03D, G01R]
6876949 Normalization of inductive vehicle detector outputsExpiredMar 07, 03Apr 05, 05[G06F]
6838886 Method and apparatus for measuring inductanceExpiredSep 04, 01Jan 04, 05[G08R, G01R]
6803859 Method and apparatus for active isolation in inductive loop detectorsExpiredJul 05, 02Oct 12, 04[G08G]
6771064 Inductive sensor apparatus and method for deployingExpiredJun 28, 02Aug 03, 04[G01B]
6639521 Inductive sensor and method of useExpiredSep 04, 01Oct 28, 03[G08G]
6611210 Automotive vehicle classification and identification by inductive signatureExpiredFeb 18, 02Aug 26, 03[G08G]
6590400 Inductive signature measurement circuitExpiredJun 28, 02Jul 08, 03[G01N, G08G, G01R, G01B]
6417784 Automotive vehicle classification and identification by inductive signatureExpiredDec 02, 97Jul 09, 02[G08G]
6380868 Permeability-modulated carrier referencingExpiredMar 22, 00Apr 30, 02[G08G]
6342845 Automotive vehicle classification and identification by inductive signatureExpiredOct 10, 00Jan 29, 02[G08G]
6337602 Method and apparatus for active isolation in inductive loop detectorsExpiredJan 05, 01Jan 08, 02[G08G]

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