| Patents for G01V 3 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation (25,929) |
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| 01/07/1998 | EP0815475A1 Process and device for producing a transponder unit and transponder unit thus produced |
| 01/07/1998 | EP0815474A1 Determining a parameter in a physical system |
| 01/07/1998 | EP0815473A1 Determining a parameter of a component in a composition |
| 01/07/1998 | EP0815472A1 Locating objects |
| 01/07/1998 | EP0815471A1 Open permanent magnet structure for generating highly uniform field |
| 01/07/1998 | EP0762915B1 Goal-detection device for ball games |
| 01/06/1998 | US5705927 For determining a characteristic of formations surrounding a borehole |
| 01/06/1998 | US5705861 Magnetic field pulse generator |
| 01/06/1998 | US5704142 Excavator data acquisition and control system and process |
| 01/02/1998 | DE19625224A1 Verfahren und Vorrichtung zur Messung magnetischer Eigenschaften von Blattgut Method and apparatus for measuring magnetic properties of sheet material |
| 01/02/1998 | DE19624323A1 Method and appliance for measurement tasks above open ground or open water surface |
| 12/31/1997 | WO1997050099A1 Metallic glass alloys for mechanically resonant marker surveillance systems |
| 12/31/1997 | WO1997050061A1 Method and device for measuring the magnetic properties of sheet materials |
| 12/31/1997 | WO1997050000A2 Advanced metal detection equipment using fluxgate magnetometers |
| 12/31/1997 | WO1997049334A1 Ferromagnetic foreign body screening method and apparatus |
| 12/31/1997 | CA2259319A1 Metallic glass alloys for mechanically resonant marker surveillance systems |
| 12/31/1997 | CA2258268A1 Ferromagnetic foreign body screening method and apparatus |
| 12/30/1997 | US5703773 Real-time 2-dimensional inversion process and its application to induction resistivity well logging |
| 12/30/1997 | US5703772 Method and apparatus for correcting drift in the response of analog receiver components in induction well logging instruments |
| 12/30/1997 | US5703566 Anti-shoplifting security system |
| 12/30/1997 | CA2115388C Dipole detection and localization processing |
| 12/29/1997 | EP0814349A2 Apparatus and method for determining properties of anisotropic earth formations |
| 12/29/1997 | EP0814342A2 Detecting equipment for magnetic minute substance contained in long object to be inspected |
| 12/29/1997 | EP0813686A1 Automatic tuning apparatus and method for substance detection using nuclear quadrupole resonance and nuclear magnetic resonance |
| 12/29/1997 | EP0813685A2 System and method for contraband detection using nuclear quadrupole resonance |
| 12/24/1997 | WO1997048990A1 Magnetic reading devices |
| 12/24/1997 | CN1168722A Determining electrical conductivity of an earth layer |
| 12/18/1997 | WO1997047976A2 Device for detection of the presence of an electrically conducting object |
| 12/16/1997 | US5698982 Method and system for skin effect correction in a multiple transmit frequency induction logging system |
| 12/16/1997 | US5698981 Technique for establishing at least a portion of an underground path of a boring tool |
| 12/16/1997 | US5698979 Method for NMR diffusion measurement |
| 12/16/1997 | CA2081196C Logging while drilling apparatus with multiple depth of resistivity investigation |
| 12/11/1997 | WO1997046895A1 Antenna system for nmr and mri apparatus |
| 12/11/1997 | DE19647420A1 Probe for detecting magnetic field changes to detecting information on rotating parts |
| 12/10/1997 | EP0811856A2 Improvements to dipole detection and localization processing |
| 12/10/1997 | EP0811854A1 Method and device for the surveillance of an unstable site |
| 12/10/1997 | EP0811209A1 Method for detecting an electroconductive element in a document |
| 12/10/1997 | CN1036683C Electric logging system |
| 12/09/1997 | US5696490 FM (VHF) infrared wireless digital metal detector |
| 12/09/1997 | US5696448 NMR system and method for formation evaluation using diffusion and relaxation log measurements |
| 12/04/1997 | WO1997045757A1 Method for automatically determining stratification beds in a site |
| 12/04/1997 | WO1997045753A1 Pulse homodyne field disturbance sensor |
| 12/04/1997 | DE19642752A1 Magnetic field variation meter for measuring rotating component |
| 12/03/1997 | EP0810451A2 Detection device for underground constructions |
| 12/03/1997 | EP0809810A1 Method of minimizing dead-periods in order to obtain hardware optimized gradient waveforms |
| 12/03/1997 | EP0648342B1 Method and apparatus for calibrating an mwd electromagnetic logger |
| 12/03/1997 | EP0623237B1 Methods and device for remote sensing of objects |
| 12/02/1997 | US5694129 Method of imminent earthquake prediction by observation of electromagnetic field and system for carrying out the same |
| 12/02/1997 | US5694038 Detector of passing magnetic articles with automatic gain control |
| 11/27/1997 | DE19620526A1 Metal detector for sensing ferromagnetic metal in harvesting machine |
| 11/26/1997 | EP0708872A4 Method and apparatus for controlling the head of a drilling or core-drilling device |
| 11/25/1997 | US5691640 Forced balance metal detector |
| 11/25/1997 | US5691639 Proximity sensor circuit with frequency changing capability |
| 11/20/1997 | DE19620313A1 Processing machine test device |
| 11/20/1997 | DE19618348A1 Mobile or caterpillar excavator with lower chassis and upper frame and outrigger |
| 11/19/1997 | EP0807202A1 Method of monitoring fluids entering a wellbore |
| 11/18/1997 | US5689248 Methods for reducing power consumption in remote sensing applications |
| 11/18/1997 | US5689184 Large scale metallic object detector |
| 11/18/1997 | US5689183 Electromagnetic-induction type inspection device employing two induction coils connected in opposite phase relation |
| 11/18/1997 | US5689182 Magnetic sensor with bobbin, sleeve and terminal bed for detecting a change in magnetic flux |
| 11/18/1997 | US5689068 Determination of the porosity and permeability of a geological formation from an electrofiltering phenomenon |
| 11/18/1997 | CA2075439C Method and apparatus for determining horizontal conductivity and vertical conductivity of earth formations |
| 11/13/1997 | WO1997042527A1 Metal detector system |
| 11/13/1997 | WO1997034165A3 Locatable locating tape for finding in particular non-metallic cables and pipelines buried in the ground |
| 11/13/1997 | DE19620309A1 Test system in machine for detection of security characteristics in object to be tested |
| 11/12/1997 | EP0806683A2 Method for detection of magnetic substances in non-magnetic products and apparatus for the detection |
| 11/12/1997 | EP0806090A1 Label for marking and remote sensing of objects |
| 11/12/1997 | EP0805991A2 Device for the detection of objects, especially explosive objects, lying in the earth |
| 11/06/1997 | WO1997041458A1 Displacement-current sensor and method for determining three-dimensional position, orientation and mass distribution |
| 11/06/1997 | WO1997041457A1 Satellite synchronized 3-d magnetotelluric system |
| 11/06/1997 | CA2251125A1 Material penetrating imaging radar |
| 11/05/1997 | EP0738366B1 Method of creating a borehole in an earth formation |
| 11/05/1997 | EP0585458B1 Device for sensing aircraft |
| 11/04/1997 | US5684459 Curvature-reduction annealing of amorphous metal alloy ribbon |
| 11/04/1997 | US5684403 Method and apparatus for the location of remote conductors by analysis of signals induced in an antenna array |
| 11/04/1997 | US5684396 Localizing magnetic dipoles using spatial and temporal processing of magnetometer data |
| 10/30/1997 | WO1997029381A3 Process and device for determining a cable run in a cable carrier system of a technical installation and detector used therein |
| 10/28/1997 | US5682164 Pulse homodyne field disturbance sensor |
| 10/28/1997 | US5682099 Logging apparatus for use in a wellbore |
| 10/21/1997 | US5680103 Metal detection system |
| 10/21/1997 | US5680049 Apparatus for measuring formation resistivity through a conductive casing having a coaxial tubing inserted therein |
| 10/21/1997 | US5680048 Mine detecting device having a housing containing metal detector coils and an antenna |
| 10/21/1997 | US5680043 Method for evaluating an earth formation |
| 10/16/1997 | WO1997038331A1 Crossed-loop resonator structure for spectroscopy |
| 10/15/1997 | EP0623221B1 Method and device for the detection of structural changes in solid bodies |
| 10/14/1997 | US5677631 Coaxial two port waveguide flowline sensor |
| 10/14/1997 | US5676767 Continuous process and reel-to-reel transport apparatus for transverse magnetic field annealing of amorphous material used in an EAS marker |
| 10/08/1997 | EP0800094A1 Circuit for detecting a transponder |
| 10/08/1997 | EP0799428A1 An impulse radar with swept range gate |
| 10/07/1997 | US5675488 Location determination using vector measurements |
| 10/02/1997 | WO1997036192A1 Device and process for determining position |
| 10/02/1997 | WO1997036143A1 Mutual induction correction |
| 10/02/1997 | WO1997035738A1 Motor vehicle occupant sensing systems |
| 10/02/1997 | DE19648120A1 Underground object locating method |
| 10/01/1997 | EP0798681A1 Pulsed interrogation signal in harmonic EAS system |
| 10/01/1997 | EP0798570A2 Method and measuringarrangement for locating objects in the earth |
| 10/01/1997 | CN1161085A NMR Logging of natural gas in reservoirs |
| 09/30/1997 | US5673191 Method and apparatus for identifying geological structures using wavelet analysis of potential fields |
| 09/30/1997 | US5672971 Well logging system arranged for stable, high-sensitivity reception of propagating electromagnetic waves |
| 09/30/1997 | US5672859 Reproduction apparatus with microwave detection |