Patents
Patents for G01V 3 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation (25,929)
09/2000
09/19/2000US6121772 Magnetic sensor
09/19/2000US6119526 Method and apparatus for detecting tendon failures within prestressed concrete
09/19/2000US6119376 Excavator data acquisition and control system and process
09/14/2000WO2000054076A1 Articulated robotic scanner
09/14/2000WO2000054075A1 Dynamic electromagnetic methods for direct prospecting for oil
09/13/2000EP1035299A2 Combined electric-field telemetry and formation evaluation method and apparatus
09/12/2000US6118378 Pulsed magnetic EAS system incorporating single antenna with independent phasing
09/12/2000US6118272 Nuclear magnetic resonance apparatus and method
09/12/2000CA2180585C Plural frequency method and system for identifying metal objects in a background environment using a target model
09/08/2000WO2000052657A1 Proximity sensor
09/08/2000WO2000052499A1 Foreign material sensor utilizing a multipole magnetic field
09/08/2000CA2300542A1 An inhomogeneous background based software focusing method for array-type induction logging tools
09/08/2000CA2296263A1 Arrow detector
09/06/2000EP1033589A2 Sensor arrangement
09/06/2000CN1265471A Evaluation of stratigraphic structure for well-logging using mangetic resonance
09/05/2000US6115671 Method for estimating rock petrophysical parameters using temperature modified NMR data
09/05/2000US6115670 Method, apparatus, and article of manufacture for solving 3D Maxwell equations in inductive logging applications
09/05/2000US6114972 Electromagnetic resistivity tool and method for use of same
09/05/2000US6114855 Apparatus for prospecting for geological formation
09/05/2000US6114851 Temperature compensated nuclear magnetic resonance apparatus and method
09/05/2000US6112584 Magnichanical sensor
08/2000
08/31/2000WO2000050926A1 Directional resistivity measurements for azimuthal proximity detection of bed boundaries
08/31/2000WO2000050925A1 Multiple spacing resistivity measurements with receiver arrays
08/31/2000WO2000050911A1 Biomagnetic detecting and imaging device
08/31/2000WO2000050883A1 Method and device for determining metallic contaminant particles in lubricating grease
08/31/2000CA2362408A1 Biomagnetic detecting and imaging device
08/30/2000EP1031477A1 Apparatus and method for sensing an object or a passenger inside an automotive vehicle using a laser beam
08/30/2000EP1031468A1 Method and device for the detection of an object or a person in the interior of a vehicle
08/30/2000EP1031135A1 Shielded ultrasound probe
08/30/2000EP0834089B1 Nmr logging of natural gas reservoirs
08/30/2000EP0725960B1 Capacitive detector device and alarm system
08/29/2000US6111409 Nuclear magnetic reasonance fluid characterization apparatus and method for using with electric wireline formation testing instruments
08/29/2000US6111408 Nuclear magnetic resonance sensing apparatus and techniques for downhole measurements
08/24/2000DE19905144A1 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
08/22/2000US6108606 Waveguide disturbance detection method
08/22/2000US6108605 Low distortion digitally controlled transmitter for use in a well logging tool
08/22/2000US6107924 High frequency type sensing device
08/22/2000US6107801 Locating an inaccessible object by detecting horizontal and vertical components of a magnetic field
08/22/2000US6107797 Magnetic resonance logging apparatus and method
08/22/2000US6107795 Pipeline vehicle with linked modules and carriages
08/17/2000WO2000048021A1 Temperature compensated nuclear magnetic resonance apparatus and method
08/17/2000WO2000048010A1 Measuring method for a capacitive measuring system
08/17/2000WO2000047291A1 Position sensing
08/17/2000WO2000017489A3 Geoelectric pre-prospecting method
08/17/2000DE10003253A1 Sondenortungseinrichtung Probe locating device
08/16/2000EP1028326A1 Method and apparatus to detect potential gradients at the earth's surface
08/15/2000US6104357 Electrode with multiple carbon fibre contact surface
08/15/2000US6104278 Universal anti-theft device and method for producing it
08/15/2000US6104193 System and method for detecting low metal content buried mines
08/15/2000US6104190 Nuclear quadrupole resonance (NQR) method and apparatus for detecting a nitramine explosive
08/15/2000US6102137 Apparatus and method for forming ducts and passageways
08/15/2000US6102136 Bore location system having mapping capability
08/15/2000US6102115 Integral standoff of induction sondes to minimize correction of borehole conductivity effects
08/09/2000EP1025446A1 Compact sensing apparatus having reduced cross section and methods of mounting same
08/09/2000EP0886757A4 Location system with field actuation sequences
08/08/2000US6100839 Enhanced impulse radar system
08/08/2000US6100820 Vehicle detector with at least one inductive loop as a sensor, and a method for performing vehicle detection
08/08/2000US6100700 Bridge scour detection and monitoring apparatus using time domain reflectometry (TDR)
08/08/2000US6100697 Seismic activity predictor in proximity with the earth including a dielectric for receiving precursor seismic electromagnetic waveforms
08/08/2000US6100696 Method and apparatus for directional measurement of subsurface electrical properties
08/08/2000US6100688 Methods and apparatus for NQR testing
08/08/2000US6100680 Detecting the passing of magnetic articles using a transducer-signal detector having a switchable dual-mode threshold
08/03/2000WO2000045195A1 Electromagnetic wave resistivity tool having tilted antenna
08/03/2000WO2000045194A1 Enhanced material penetrating imaging radar
08/02/2000EP1024375A2 Metal detector with search head
08/01/2000US6098019 Resistivity log correction method
08/01/2000US6097190 Method and device for locating and identifying search objects concealed in the ground, particularly plastic mines
08/01/2000US6097184 Nuclear magnetic resonance well logging to determine gas-filled porosity and oil-filled porosity of earth formations without a constant static magnetic field gradient
07/2000
07/26/2000EP0700528B1 Electromagnetic hidden object detector
07/26/2000EP0669007B1 Movable solenoid source in target well for location measurement
07/25/2000US6094157 Oblique scanning ground penetrating radar
07/25/2000US6094147 Method for detecting an electroconductive element in a document
07/25/2000US6094048 NMR logging of natural gas reservoirs
07/25/2000US6093261 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
07/20/2000WO2000042450A1 An article identification tag, and a method for the detection thereof
07/20/2000WO2000042425A1 A subsurface pipeline inspection probe
07/19/2000EP1020737A2 Method and apparatus for electromagnetic detection of objects
07/19/2000EP1020734A2 Optical position sensors
07/19/2000EP1019880A1 Sensor and method for remote detection of objects
07/19/2000EP1019755A1 Resistivity log correction method
07/19/2000EP1019754A1 Search device for locating buried persons
07/19/2000CN1260877A Selective polarization matching filter for triggering and maximizing rapid dielectrokinesis response
07/19/2000CN1260497A Underground nulcear magnetic resonance logger with programmable pulse serial generators
07/18/2000US6092024 Method and apparatus for determining resistivity and dielectric anisotropy parameters of earth formations by using multifrequency and/or multispacing measurements
07/18/2000US6091354 Ground penetrating radar with synthesized end-fire array
07/18/2000US6091333 Shoplifting prevention device and article with shoplifting prevention device
07/13/2000WO2000041306A2 Micropower capacitance-based proximity sensor
07/13/2000WO2000041007A1 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
07/13/2000WO2000041006A1 Retrievable resistivity tool for measurement while drilling
07/13/2000CA2360230A1 Micropower capacitance-based proximity sensor
07/12/2000CN1054436C Human body detector
07/11/2000US6088656 Method for interpreting carbonate reservoirs
07/11/2000US6088655 Electrical resistance tomography from measurements inside a steel cased borehole
07/11/2000US6088580 Battery operated, portable transmitter having coil surrounding tubular, ferromagnetic housing
07/11/2000US6087833 Passive geophysical prospecting apparatus and method based upon detection of discontinuities associated with extremely low frequency electromagnetic fields
07/11/2000US6087824 Nail locating device with magnet supporting indicator rod mounted in a ball socket
07/06/2000WO2000039612A1 Water saturation and sand fraction determination from borehole resistivity imaging tool, transverse induction logging and a tensorial water saturation model
07/06/2000WO2000038959A1 Occupant detection system
07/06/2000WO2000038958A1 Occupant sensor
07/06/2000WO2000038957A1 Occupant detection system