Patents
Sitemap › G01 - Measuring; Testing › G01V - Geophysics; Gravitational measurements; Detecting masses or objects; Tags › G01V 15 - Tags attached to, or associated with, an object, in order to enable detection of the object
Patents for G01V 15 - Tags attached to, or associated with, an object, in order to enable detection of the object (2,419)
09/1992
09/03/1992WO1992012401A3 Indicating devices and apparatus
09/02/1992EP0501676A1 Method of determining the proximity of a structure by means of a form of radiant energy non-interactable with said structure
08/1992
08/29/1992CA2060572A1 System and method for electromagnetically determining both the proximityand dimensions of a non-conductive structure
08/26/1992CN1063951A Remotely readable data storage devices and apparatus
07/1992
07/23/1992WO1992012402A1 Remotely readable data storage devices and apparatus
07/23/1992WO1992012401A2 Indicating devices and apparatus
07/15/1992EP0494764A1 Interrogation station for the identification of objects moved along a conveyor
07/08/1992EP0493405A1 Electronic markers with predetermined spacing.
06/1992
06/16/1992US5122750 Methods employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables
05/1992
05/26/1992US5116654 Self-dispensing spaced electronic markers
05/19/1992US5114517 Methods, apparatus and devices relating to magnetic markers for elongated hidden objects
04/1992
04/30/1992WO1992007286A1 Detectable device for the identification of optically invisible objects
04/28/1992US5108822 With dielectric film of reduced thickness
04/21/1992US5106175 Locatable object suitable for underground use and methods of locating same
04/07/1992US5103234 Electronic article surveillance system
04/02/1992WO1992005533A1 Identifying metal articles
03/1992
03/18/1992EP0386134A4 Antenna system for magnetic and resonant circuit detection
03/17/1992CA1297551C Deactivatable magnetic marker, method of making same and article surveillance system utilizing same
03/11/1992EP0473970A2 Method for producing electric resonant circuits, particulary resonance-tag
03/04/1992EP0472932A1 Electronic article surveillance tag and method for implementing same
02/1992
02/26/1992EP0472013A1 Electronic article surveillance system and antenna structure therefor
02/25/1992US5091895 Timing apparatus
02/12/1992EP0470318A2 Resonant tag and method of manufacturing the same
02/11/1992CA1295718C Low cost transponder system
02/05/1992EP0469769A2 Magnetically-coupled, two-resonant-circuit, frequency-division tag
02/03/1992CA2041827A1 Electronic article surveillance tag and method for implementing same
01/1992
01/14/1992CA1294342C Electronic article surveillance system
01/02/1992EP0432180A4 Timing apparatus
12/1991
12/31/1991US5076862 Non-magnetic base, magnetic coating, exposure to high energy density beam to melt & mix, rapid cooling
12/12/1991WO1991019306A1 Automated method for the manufacture of small implantable transponder devices
12/12/1991WO1991019302A1 Automated method for the manufacture of transponder devices
11/1991
11/13/1991EP0171433B1 Identification system and transponder therefor
10/1991
10/29/1991US5061941 Composite antenna for electronic article surveillance systems
10/22/1991CA1291244C Magnetic devices
10/16/1991EP0451812A2 Electromagnetic sensor element and method for making same
10/15/1991US5057844 Insulated underground antenna and method for utilizing same
10/01/1991US5053774 Transponder arrangement
09/1991
09/25/1991EP0448114A1 Thin-film magnetic material and process of production thereof
09/24/1991US5051726 Electronic article surveillance system with antenna array for enhanced field falloff
09/24/1991US5051034 Magnetically detectable plastic pipe
09/24/1991US5050292 Automated method for the manufacture of transponder devices by winding around a bobbin
09/17/1991US5049857 Multi-mode electronic article surveillance system
09/03/1991US5045368 Self-dispensing spaced electronic markers
08/1991
08/27/1991US5043032 Sensing presence of eddy currents as stack passes through a magnetic field; accuracy, quality control
08/20/1991US5041826 Interrogator
08/10/1991WO1991012119A1 Methods, apparatus and devices relating to magnetic markers for elongated hidden objects
08/07/1991EP0440370A1 Composite antenna for electronic article surveillance systems
08/02/1991CA2035070A1 Composite antenna for electronic article surveillance systems
07/1991
07/30/1991US5036210 Magnetically detectable plastic pipe
07/17/1991CA2034045A1 Double pulse magnetic markers
07/16/1991CA1286390C Method of and system and apparatus for locating and/or tracking stolen or missing vehicles and the like
07/09/1991US5030940 Electronic article surveillance tag and method for implementing same
07/03/1991EP0435585A2 Locatable object suitable for underground use and methods of locating same
07/02/1991US5029291 Electromagnetic sensor element and methods and apparatus for making and using same
06/1991
06/25/1991US5025550 Automated method for the manufacture of small implantable transponder devices
06/19/1991EP0432180A1 Timing apparatus.
06/12/1991EP0431745A2 Sensitizer for ferromagnetic markers used with electromagnetic article surveillance systems
06/12/1991EP0431343A2 Audible tag for magnetic electronic article surveillance systems
06/09/1991CA2029245A1 Sensitizer for ferromagnetic markers used with electromagnetic article surveillance systems
06/06/1991CA2020952A1 Audible tag for magnetic electronic article surveillance systems
05/1991
05/21/1991US5017907 Surveillance system
05/21/1991US5017873 Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables
05/21/1991US5017415 Self-dispensing spaced electronic markers
04/1991
04/09/1991US5006806 Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as burried fiber optic cables
03/1991
03/19/1991WO1991004503A1 Electronic markers with predetermined spacing
03/19/1991CA2066602A1 Electronic markers with predetermined spacing
02/1991
02/13/1991EP0412721A2 Multi-directionally responsive, dual-status, magnetic article surveillance marker having a persistent state
02/12/1991US4992794 Transponder and method for the production thereof
01/1991
01/30/1991EP0410245A2 Multi-Mode Electronic article Surveillance System
01/16/1991EP0408320A2 Identification of hidden pipes etc.
01/15/1991CA1279112C Marking tape with wire conductors and methods for use
12/1990
12/27/1990EP0403632A1 Electronic article surveillance system with improved differentiation
12/25/1990US4980670 Deactivatable E.A.S. marker having a step change in magnetic flux
11/1990
11/22/1990EP0398527A2 Electrofusion marker
11/19/1990CA2013791A1 Electrofusion marker
10/1990
10/30/1990US4967185 Multi-directionally responsive, dual-status, magnetic article surveillance marker having continuous keeper
10/24/1990EP0393774A1 Circuit and data transmission device containing such activation
10/02/1990US4960651 Magnetic devices
09/1990
09/20/1990WO1990010879A1 Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables
09/12/1990EP0386134A1 Antenna system for magnetic and resonant circuit detection.
08/1990
08/28/1990US4952938 Wire detector
08/23/1990WO1990009584A1 Method for detecting protective layer on composite materials
08/07/1990US4947012 Electrofusion marker
07/1990
07/12/1990WO1990007760A1 Electronic article surveillance system with improved differentiation
07/10/1990US4940966 Article detection and/or recognition using magnetic devices
07/09/1990CA2007310A1 Electronic article surveillance system with improved differentiation
06/1990
06/19/1990US4935070 Method of manufacturing heat resisting magnetic scale
04/1990
04/18/1990EP0364045A1 Transponder and method for the production thereof
02/1990
02/22/1990WO1990001752A1 Timing apparatus
01/1990
01/23/1990CA1264840A1 Identification system
01/04/1990DE3921420A1 Magnetic sensor
12/1989
12/28/1989WO1989012916A1 Antenna system for magnetic and resonant circuit detection
12/19/1989US4888745 Apparatus for marking individual points of an underwater construction
12/05/1989CA1263722A1 Passive marker structure
11/1989
11/15/1989EP0341994A2 System and method with passive resonant circuit markers for locating buried electrical conductors
11/02/1989EP0340034A2 Random-filament, multi-directionally responsive marker for use in electronic article surveillance systems
10/1989
10/10/1989US4873533 Marker for locating a buried object
09/1989
09/26/1989CA1261936A1 Rf reactivatable marker
09/12/1989US4866388 System and method with passive resonant circuit markers for locating buried electrical conductors
08/1989
08/22/1989US4859991 Electronic article surveillance system employing time domain and/or frequency domain analysis and computerized operation
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