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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09/19/2000 | US6121772 Magnetic sensor |
09/19/2000 | US6119526 Method and apparatus for detecting tendon failures within prestressed concrete |
09/19/2000 | US6119376 Excavator data acquisition and control system and process |
09/14/2000 | WO2000054076A1 Articulated robotic scanner |
09/14/2000 | WO2000054075A1 Dynamic electromagnetic methods for direct prospecting for oil |
09/13/2000 | EP1035299A2 Combined electric-field telemetry and formation evaluation method and apparatus |
09/12/2000 | US6118378 Pulsed magnetic EAS system incorporating single antenna with independent phasing |
09/12/2000 | US6118272 Nuclear magnetic resonance apparatus and method |
09/12/2000 | CA2180585C Plural frequency method and system for identifying metal objects in a background environment using a target model |
09/08/2000 | WO2000052657A1 Proximity sensor |
09/08/2000 | WO2000052499A1 Foreign material sensor utilizing a multipole magnetic field |
09/08/2000 | CA2300542A1 An inhomogeneous background based software focusing method for array-type induction logging tools |
09/08/2000 | CA2296263A1 Arrow detector |
09/06/2000 | EP1033589A2 Sensor arrangement |
09/06/2000 | CN1265471A Evaluation of stratigraphic structure for well-logging using mangetic resonance |
09/05/2000 | US6115671 Method for estimating rock petrophysical parameters using temperature modified NMR data |
09/05/2000 | US6115670 Method, apparatus, and article of manufacture for solving 3D Maxwell equations in inductive logging applications |
09/05/2000 | US6114972 Electromagnetic resistivity tool and method for use of same |
09/05/2000 | US6114855 Apparatus for prospecting for geological formation |
09/05/2000 | US6114851 Temperature compensated nuclear magnetic resonance apparatus and method |
09/05/2000 | US6112584 Magnichanical sensor |
08/31/2000 | WO2000050926A1 Directional resistivity measurements for azimuthal proximity detection of bed boundaries |
08/31/2000 | WO2000050925A1 Multiple spacing resistivity measurements with receiver arrays |
08/31/2000 | WO2000050911A1 Biomagnetic detecting and imaging device |
08/31/2000 | WO2000050883A1 Method and device for determining metallic contaminant particles in lubricating grease |
08/31/2000 | CA2362408A1 Biomagnetic detecting and imaging device |
08/30/2000 | EP1031477A1 Apparatus and method for sensing an object or a passenger inside an automotive vehicle using a laser beam |
08/30/2000 | EP1031468A1 Method and device for the detection of an object or a person in the interior of a vehicle |
08/30/2000 | EP1031135A1 Shielded ultrasound probe |
08/30/2000 | EP0834089B1 Nmr logging of natural gas reservoirs |
08/30/2000 | EP0725960B1 Capacitive detector device and alarm system |
08/29/2000 | US6111409 Nuclear magnetic reasonance fluid characterization apparatus and method for using with electric wireline formation testing instruments |
08/29/2000 | US6111408 Nuclear magnetic resonance sensing apparatus and techniques for downhole measurements |
08/24/2000 | DE19905144A1 Threshold/response device with device for data transfer between seeker and data medium; uses data medium that stores identification data and while question signal may be triggered by seeker for data identification |
08/22/2000 | US6108606 Waveguide disturbance detection method |
08/22/2000 | US6108605 Low distortion digitally controlled transmitter for use in a well logging tool |
08/22/2000 | US6107924 High frequency type sensing device |
08/22/2000 | US6107801 Locating an inaccessible object by detecting horizontal and vertical components of a magnetic field |
08/22/2000 | US6107797 Magnetic resonance logging apparatus and method |
08/22/2000 | US6107795 Pipeline vehicle with linked modules and carriages |
08/17/2000 | WO2000048021A1 Temperature compensated nuclear magnetic resonance apparatus and method |
08/17/2000 | WO2000048010A1 Measuring method for a capacitive measuring system |
08/17/2000 | WO2000047291A1 Position sensing |
08/17/2000 | WO2000017489A3 Geoelectric pre-prospecting method |
08/17/2000 | DE10003253A1 Sondenortungseinrichtung Probe locating device |
08/16/2000 | EP1028326A1 Method and apparatus to detect potential gradients at the earth's surface |
08/15/2000 | US6104357 Electrode with multiple carbon fibre contact surface |
08/15/2000 | US6104278 Universal anti-theft device and method for producing it |
08/15/2000 | US6104193 System and method for detecting low metal content buried mines |
08/15/2000 | US6104190 Nuclear quadrupole resonance (NQR) method and apparatus for detecting a nitramine explosive |
08/15/2000 | US6102137 Apparatus and method for forming ducts and passageways |
08/15/2000 | US6102136 Bore location system having mapping capability |
08/15/2000 | US6102115 Integral standoff of induction sondes to minimize correction of borehole conductivity effects |
08/09/2000 | EP1025446A1 Compact sensing apparatus having reduced cross section and methods of mounting same |
08/09/2000 | EP0886757A4 Location system with field actuation sequences |
08/08/2000 | US6100839 Enhanced impulse radar system |
08/08/2000 | US6100820 Vehicle detector with at least one inductive loop as a sensor, and a method for performing vehicle detection |
08/08/2000 | US6100700 Bridge scour detection and monitoring apparatus using time domain reflectometry (TDR) |
08/08/2000 | US6100697 Seismic activity predictor in proximity with the earth including a dielectric for receiving precursor seismic electromagnetic waveforms |
08/08/2000 | US6100696 Method and apparatus for directional measurement of subsurface electrical properties |
08/08/2000 | US6100688 Methods and apparatus for NQR testing |
08/08/2000 | US6100680 Detecting the passing of magnetic articles using a transducer-signal detector having a switchable dual-mode threshold |
08/03/2000 | WO2000045195A1 Electromagnetic wave resistivity tool having tilted antenna |
08/03/2000 | WO2000045194A1 Enhanced material penetrating imaging radar |
08/02/2000 | EP1024375A2 Metal detector with search head |
08/01/2000 | US6098019 Resistivity log correction method |
08/01/2000 | US6097190 Method and device for locating and identifying search objects concealed in the ground, particularly plastic mines |
08/01/2000 | US6097184 Nuclear magnetic resonance well logging to determine gas-filled porosity and oil-filled porosity of earth formations without a constant static magnetic field gradient |
07/26/2000 | EP0700528B1 Electromagnetic hidden object detector |
07/26/2000 | EP0669007B1 Movable solenoid source in target well for location measurement |
07/25/2000 | US6094157 Oblique scanning ground penetrating radar |
07/25/2000 | US6094147 Method for detecting an electroconductive element in a document |
07/25/2000 | US6094048 NMR logging of natural gas reservoirs |
07/25/2000 | US6093261 Specified alloy including iron, cobalt, nickel, boron, silicon, carbon; use as strip in a marker for an article surveillance system which detects signals produced by mechanical resonance of marker within applied magnetic field |
07/20/2000 | WO2000042450A1 An article identification tag, and a method for the detection thereof |
07/20/2000 | WO2000042425A1 A subsurface pipeline inspection probe |
07/19/2000 | EP1020737A2 Method and apparatus for electromagnetic detection of objects |
07/19/2000 | EP1020734A2 Optical position sensors |
07/19/2000 | EP1019880A1 Sensor and method for remote detection of objects |
07/19/2000 | EP1019755A1 Resistivity log correction method |
07/19/2000 | EP1019754A1 Search device for locating buried persons |
07/19/2000 | CN1260877A Selective polarization matching filter for triggering and maximizing rapid dielectrokinesis response |
07/19/2000 | CN1260497A Underground nulcear magnetic resonance logger with programmable pulse serial generators |
07/18/2000 | US6092024 Method and apparatus for determining resistivity and dielectric anisotropy parameters of earth formations by using multifrequency and/or multispacing measurements |
07/18/2000 | US6091354 Ground penetrating radar with synthesized end-fire array |
07/18/2000 | US6091333 Shoplifting prevention device and article with shoplifting prevention device |
07/13/2000 | WO2000041306A2 Micropower capacitance-based proximity sensor |
07/13/2000 | WO2000041007A1 Location of a cable in a dc connection in a bipolar 12-pulse system for transmission of electrical energy by means of high-voltage direct current |
07/13/2000 | WO2000041006A1 Retrievable resistivity tool for measurement while drilling |
07/13/2000 | CA2360230A1 Micropower capacitance-based proximity sensor |
07/12/2000 | CN1054436C Human body detector |
07/11/2000 | US6088656 Method for interpreting carbonate reservoirs |
07/11/2000 | US6088655 Electrical resistance tomography from measurements inside a steel cased borehole |
07/11/2000 | US6088580 Battery operated, portable transmitter having coil surrounding tubular, ferromagnetic housing |
07/11/2000 | US6087833 Passive geophysical prospecting apparatus and method based upon detection of discontinuities associated with extremely low frequency electromagnetic fields |
07/11/2000 | US6087824 Nail locating device with magnet supporting indicator rod mounted in a ball socket |
07/06/2000 | WO2000039612A1 Water saturation and sand fraction determination from borehole resistivity imaging tool, transverse induction logging and a tensorial water saturation model |
07/06/2000 | WO2000038959A1 Occupant detection system |
07/06/2000 | WO2000038958A1 Occupant sensor |
07/06/2000 | WO2000038957A1 Occupant detection system |