| Patents for G01V 15 - Tags attached to, or associated with, an object, in order to enable detection of the object (2,419) |
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| 05/16/1995 | CA1335553C Transporder and method for the production thereof |
| 05/10/1995 | EP0652531A1 Low level RF Threshold detector |
| 05/09/1995 | US5414412 Frequency dividing transponder, including amorphous magnetic alloy and tripole strip of magnetic material |
| 05/09/1995 | US5414410 Method and system for detecting a marker |
| 04/20/1995 | DE4335169A1 Golf ball and detector for it |
| 04/18/1995 | US5408243 Method for producing a flat flexible antenna |
| 04/13/1995 | DE4334655A1 Band-shaped transport and/or drive element |
| 03/28/1995 | US5401584 Surveillance marker and method of making same |
| 03/23/1995 | WO1995008130A1 Apparatus and method for locating a medical tube in the body of a patient |
| 03/23/1995 | CA2171717A1 Apparatus and method for locating a medical tube in the body of a patient |
| 03/15/1995 | EP0643376A1 Surveillance marker and method of making same |
| 03/11/1995 | CA2131127A1 Surveillance marker and method of making same |
| 03/07/1995 | US5395460 Harmonic markers made from Fe-Ni based soft magnetic alloys having nanocrystalline structure |
| 03/02/1995 | WO1995006264A1 Conductor locator adapter for electronic markers |
| 01/11/1995 | EP0493405B1 Electronic markers with predetermined spacing |
| 12/21/1994 | EP0629982A1 Frequency-dividing transponder including amorphous magnetic alloy and tripole strip of magnetic material |
| 12/17/1994 | CA2123864A1 Frequency-dividing transponder including amorphous magnetic alloy and tripole strip of magnetic material |
| 12/14/1994 | EP0628936A1 Multidirectional surveillance marker |
| 12/14/1994 | EP0553245B1 Detectable device for the identification of optically invisible objects |
| 12/13/1994 | US5373235 System and method using portable wall engaging ferromagnetic particle impregnated target medium for electromagnetically measuring distance between oposing walls of a structure |
| 12/07/1994 | EP0627106A1 Method and device for electronic identification. |
| 11/30/1994 | EP0419637B1 Methods and apparatus employing permanent magnets for marking, locating, tracing and identifying hidden objects such as buried fiber optic cables |
| 11/15/1994 | CA2073769C Methods, apparatus and devices relating to magnetic markers for elongated hidden objects |
| 11/08/1994 | CA2039989C Electromagnetic sensor element and methods and apparatus for making and using same |
| 11/02/1994 | EP0622766A1 Antenna lattice for electronic article surveillance system |
| 10/18/1994 | US5357437 Magnetic marker position fixing system for underwater vehicles |
| 10/05/1994 | EP0386134B1 Antenna system for magnetic and resonant circuit detection |
| 09/27/1994 | US5351033 Semi-hard magnetic elements and method of making same |
| 09/21/1994 | EP0588944A4 An improved miniature transponder device |
| 09/15/1994 | WO1994020941A1 Multi-mode identification system |
| 09/08/1994 | DE4307080A1 Method and device for the production of a coil arrangement |
| 08/24/1994 | EP0611480A1 Heat treatment process and soft magnetic alloys produced thereby. |
| 08/23/1994 | USRE34701 Mixing in iron oxide or barium ferrite |
| 08/17/1994 | EP0611164A1 Method and system for detecting a marker |
| 08/16/1994 | US5338373 Method of encoding and decoding a glassy alloy strip to be used as an identification marker |
| 08/03/1994 | EP0608250A1 Electronic animal identification system. |
| 07/27/1994 | EP0412128B1 Method for detecting protective layer on composite materials |
| 06/29/1994 | EP0432180B1 Timing apparatus |
| 06/08/1994 | EP0599963A1 A method of encoding and decoding a glassy alloy strip to be used as an identification marker. |
| 05/17/1994 | US5313192 Marker for use in an article surveillance system |
| 05/05/1994 | DE4333121A1 Locating system with magnetometer for magnetic objects in ground - contains magnetic probe movable along a line, and corrects for speed variations |
| 04/28/1994 | WO1994009388A1 A program unit of the prom-type and a marker with such a unit |
| 04/28/1994 | WO1994009172A1 IMPROVED HARMONIC MARKERS MADE FROM Fe-Ni BASED SOFT MAGNETIC ALLOYS HAVING NANOCRYSTALLINE STRUCTURE |
| 04/28/1994 | CA2145745A1 Improved harmonic markers made from fe - ni based soft magnetic alloys having nanocrystalline structure |
| 04/19/1994 | US5304983 Multiple pulse responder and detection system and method of making and using same |
| 04/14/1994 | DE4234432A1 Position adjustment of mechanical hoes - uses metallic rings buried in rows at uniform spacing during sowing for detection by hoeing machine avoiding similarly spaced plants. |
| 04/13/1994 | EP0591640A1 Semi-hard magnetic elements and method of making same |
| 03/30/1994 | EP0588944A1 An improved miniature transponder device |
| 03/03/1994 | WO1994005090A1 Identification apparatus |
| 03/03/1994 | WO1994004947A1 Locator for underground pipe |
| 03/03/1994 | CA2141838A1 Identification apparatus |
| 02/08/1994 | US5285065 Natural gamma ray logging sub |
| 02/02/1994 | CN1081491A Survey of wells by radioactive isotope tracking method |
| 01/25/1994 | US5281855 Integrated circuit device including means for facilitating connection of antenna lead wires to an integrated circuit die |
| 01/13/1994 | DE4222412A1 Conveyor belt for food industry - comprises plastic sections joined to form endless belt in which one or more permanently magnetic or non-magnetic bars are inserted |
| 01/05/1994 | EP0577018A2 Band for recovering of non-metallic underground conducts or the like |
| 01/05/1994 | EP0577015A1 Deactivatable/reactivatable magnetic marker having a step change in magnetic flux |
| 12/28/1993 | US5274392 Tilted antenna |
| 12/23/1993 | DE4220194A1 Conductor-to-chip contact in mfr. of transponder |
| 11/16/1993 | US5262885 Control circuit and data transmission device provided with such a circuit |
| 10/28/1993 | WO1993021544A1 A marker system with markers of the electromagnetical type, and a marker and a detector therefor |
| 10/20/1993 | EP0565584A1 Indicating devices and apparatus |
| 10/12/1993 | US5252918 Apparatus and method for electromagnetically detecting the passing of a plug released into a well by a bridge circuit |
| 10/12/1993 | US5252144 Heat treatment process and soft magnetic alloys produced thereby |
| 10/05/1993 | US5250944 Antenna and driving circuit for transmitting and receiving images to and from a passive transponder |
| 09/22/1993 | EP0561559A1 Electrically-and-magnetically-coupled, batteryless, portable frequency divider |
| 09/16/1993 | WO1993017841A1 Detectable cutter knife and method for making same |
| 08/31/1993 | US5241298 Electrically-and-magnetically-coupled, batteryless, portable, frequency divider |
| 08/17/1993 | US5237307 Non-contact tamper sensing by electronic means |
| 08/17/1993 | US5235880 Detectable cutter knife and method for making same |
| 08/11/1993 | EP0554581A1 Method for producing a flat flexible antenna core for a chip transponder to be incorporated in a badge or similar object, and a thus produced antenna core |
| 08/10/1993 | US5235326 Multi-mode identification system |
| 07/22/1993 | WO1993014474A1 Method and device for electronic identification |
| 07/22/1993 | CA2128432A1 Method and device for electronic identification |
| 06/30/1993 | EP0531426A4 Automated method for the manufacture of transponder devices |
| 06/29/1993 | US5223851 Apparatus for facilitating interconnection of antenna lead wires to an integrated circuit and encapsulating the assembly to form an improved miniature transponder device |
| 06/09/1993 | EP0545422A1 Multiple pulse responder and detection system and method of making and using same |
| 06/05/1993 | CA2083886A1 Multiple pulse responder and detection system and method of making and using same |
| 05/18/1993 | CA1318005C2 Antenna array for use in an article surveillance system |
| 05/13/1993 | WO1993009551A1 Transponder and process and device for producing it |
| 05/13/1993 | WO1993009549A1 Heat treatment process and soft magnetic alloys produced thereby |
| 05/05/1993 | EP0403632A4 Electronic article surveillance system with improved differentiation |
| 04/27/1993 | US5206065 Methods, apparatus and devices relating to magnetic markers for elongated hidden objects |
| 04/27/1993 | CA1317005C System and method with passive resonant circuit markers for locating buried electrical conductors |
| 04/20/1993 | US5203111 Revolving door for the protection of the access to and/or exit from a room |
| 04/06/1993 | US5200704 System and method including a buried flexible sheet target impregnated with ferromagnetic particles and eddy current probe for determining proximity of a non-conductive underground structure |
| 04/01/1993 | WO1993005648A1 Electronic animal identification system |
| 03/23/1993 | CA1314993C Process for the location of an object and the determination of its orientation in space and apparatus for performing the same |
| 03/17/1993 | EP0531426A1 Automated method for the manufacture of transponder devices. |
| 03/04/1993 | WO1993004538A1 A method of encoding and decoding a glassy alloy strip to be used as an identification marker |
| 01/20/1993 | EP0524081A1 Communication system between a emitter/receiver interrogator device and an emitter/receiver responder device |
| 01/19/1993 | US5181020 Thin-film magnetic material and process of production thereof |
| 01/05/1993 | US5177360 Devices and method to confirm the authenticity of art objects |
| 12/23/1992 | WO1992022827A1 An improved miniature transponder device |
| 12/22/1992 | US5173139 Method for providing magnetic markers on elongated hidden objects |
| 12/15/1992 | US5170544 Method of producing electrical resonant circuits, specifically resonance labels |
| 11/24/1992 | US5166676 A transponder |
| 11/17/1992 | CA1310383C Random-filament, multi-directionally responsive marker for use in electronic article surveillance systems |
| 10/20/1992 | US5157245 Magnetic sensor |
| 09/30/1992 | EP0506152A1 Revolving door for the protection of the access to and/or exit from a room |