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)
04/2002
04/11/2002WO2002029748A1 Apparatus and circuit for use with capacitive presence detection systems
04/11/2002WO2002029747A1 Apparatus for use with capacitive presence detection systems
04/11/2002WO2002029444A1 Method of evaluating formation properties
04/11/2002WO2002029443A1 Inductive position sensor
04/11/2002WO2002029442A1 Method for 2d inversion of dual laterolog measurements
04/11/2002WO2002029439A2 Proximity sensor cable compensation using multiple frequencies
04/11/2002WO2000052657A9 Proximity sensor
04/11/2002DE10047427A1 Arrangement for monitoring take-off and landing runways on airports has remote stereo reconnaissance sensor, compares two sets of stereo information, outputs warning if large difference
04/11/2002CA2424159A1 Apparatus for use with capacitive presence detection systems
04/11/2002CA2424104A1 Apparatus and circuit for use with capacitive presence detection systems
04/10/2002EP1195901A2 Methods and systems for capacitive motion sensing and position control
04/10/2002EP1194907A1 Thickness measurement system and method for vehicle occupant detection
04/10/2002EP1194792A1 Propagating wave earth formation resistivity measuring arrangement
04/10/2002EP1194740A1 Electrical sensor for measuring capacitance change and conversion into a voltage signal
04/09/2002US6370412 Method and apparatus for guiding ablative therapy of abnormal biological electrical excitation
04/09/2002US6369965 Magnetic interrogation techniques
04/09/2002US6369575 Methods and apparatuses for measuring the resistivity of drilling mud in a borehole
04/09/2002US6369574 Method of probing drill holes electromagnetically, and a transmitter arrangement and a receiver arrangement for carrying out the method
04/09/2002US6369573 Apparatus for reducing rotation of a towed airborne article
04/09/2002US6369564 Electromagnetic position and orientation tracking system with distortion compensation employing wireless sensors
04/04/2002WO2002027357A1 Method for determination of apparent resistivities of anisotropic reservoirs
04/04/2002WO2002027356A1 Nmr sequence for optimizing instrument electrical power usage
04/04/2002WO2000070600A9 Measuring and recording motion in musical keyboard
04/04/2002US20020040274 Method for 2D inversion of dual laterolog measurements
04/04/2002US20020038947 Occupant detecting apparatus capable of improving detection accuracy
04/04/2002CA2423927A1 Method for determination of apparent resistivities of anisotropic reservoirs
04/03/2002EP1193662A1 Method and apparatus for detecting traffic data by means of detection and classification of moving or non-moving vehicles
04/03/2002EP1192456A1 Casing joint locator methods and apparatus
04/03/2002EP0916101A4 Combined electric-field telemetry and formation evaluation method and apparatus
04/03/2002CN1342891A 4-electrode electric measuring method for measuring and calculating apparatus AC conductivity of ground
04/02/2002US6366859 Method of detecting breaks in logging signals relating to a region of a medium
04/02/2002US6366858 Method of and apparatus for independently determining the resistivity and/or dielectric constant of an earth formation
04/02/2002US6366232 Method and sensor for detecting foreign bodies in a medium with a radar
04/02/2002US6366203 Walk-through security device having personal effects view port and methods of operating and manufacturing the same
04/02/2002US6366089 Nuclear magnetic resonance logging with azimuthal resolution
04/02/2002US6366088 Method to enhance vertical resolution of time-decay log using forward modeling deconvolution of time-decay spectra
04/02/2002US6366087 NMR logging apparatus and methods for fluid typing
04/02/2002US6366086 Apparatus and method for magnetic resonance logging
04/02/2002US6366073 Nail locating device with pivotable magnet supporting indicator rod
03/2002
03/28/2002WO2002025318A1 Metal detector
03/28/2002US20020038096 Method and apparatus for producing an electrical property image using a charge correlation matrix
03/28/2002US20020036503 Method and apparatus for tuning an NMR coil
03/28/2002DE10045697A1 Verfahren zum Orten von Objekten und Detektorvorrichtung Method for locating objects and detecting device
03/28/2002DE10042958A1 Method for detecting buried power supply cables employs HF test signal
03/27/2002EP0873465B1 Trenchless underground boring system with boring tool location
03/27/2002EP0646250B1 Nuclear magnetic resonance determination of petrophysical properties of geologic structures
03/27/2002CN2483736Y Display and plot apparatus used for CSU logging system
03/27/2002CN1342267A Permeability-modulated carrier referencing
03/26/2002US6362625 Active magnetic anomaly sensing system having synchronized transceiver and discriminator
03/26/2002US6362619 Method and apparatus for nuclear magnetic resonance measuring while drilling
03/26/2002CA2317498C Rf identification process and apparatus
03/26/2002CA2246279C Permanent magnet material composition and structure for eddy current suppression in a nuclear magnetic resonance sensing apparatus
03/26/2002CA2212925C Method to determine local variations of the earth's magnetic field and location of the source thereof
03/21/2002WO2002023226A1 Method of measuring in-medium dielectric constant in electromagnetic prober, and electromagnetic prober
03/21/2002WO2002023225A1 Received-signal processing method and received-signal processing apparatus for electromagnetic wave probe
03/21/2002WO2002003100A3 Determining earth formation resistivity by attenuation and phase shift measurements
03/21/2002US20020033758 Systems and methods for locating subsurface objects
03/21/2002US20020033699 Downhole NMR tool
03/20/2002EP1189076A2 Method for locating objects and detecting device
03/20/2002EP1188265A1 Method and apparatus for determining position in a pipe
03/20/2002EP1188073A1 A method and apparatus for determining the resistivity of a formation surrounding a cased well
03/20/2002EP1000419B1 Security element for the electronic surveillance of articles
03/20/2002EP0950199B1 Apparatus for sensing vehicles
03/20/2002CN1081338C Borehole seismic electric detecting method
03/19/2002US6359597 Method and device for detecting and monitoring concealed bodies and objects
03/19/2002US6359582 Concealed weapons detection system
03/19/2002US6359438 Multi-depth focused resistivity imaging tool for logging while drilling applications
03/19/2002CA2110433C Magnetic cartography process and apparatus
03/14/2002WO2002021163A2 A logging tool for measurement of resistivity through casing using metallic transparences and magnetic lensing
03/14/2002WO2002021162A1 A device for measuring an electrical parameter through electrically-conductive casing
03/14/2002WO2002021161A2 Measurements of electrical properties through non magnetically permeable metals using directed magnetic beams and magnetic lenses
03/14/2002US20020030492 Method and apparatus for locating a buried metallic object
03/13/2002EP0946888B1 Display element for use in a magnetic merchandise monitoring system
03/13/2002EP0901642A4 Pulse homodyne field disturbance sensor
03/13/2002EP0848832B1 Method and arrangement for determining the position of a marker in an organic cavity
03/12/2002US6356855 Moving body detection system
03/12/2002US6356082 Utility locator radio link
03/12/2002CA2150188C Methods and devices for real-time formation imaging through measurement-while-drilling telemetry
03/07/2002WO2002018978A2 Multi-axis locator for detection of buried targets
03/07/2002WO2002018977A1 Combined characterization and inversion of reservoir parameters from nuclear, nmr and resistivity measurements
03/07/2002WO2002018831A1 Locatable magnetized polyethylene gas pipe distribution system
03/07/2002WO2002017783A1 Magnet device and magnetic resonance imaging apparatus comprising it
03/07/2002WO2001086116B1 Measuring device for detecting a body moving in relation to a tubular container
03/07/2002US20020027521 Talking buried object detector
03/07/2002US20020027509 Object detection system
03/07/2002US20020027438 Temperature compensation for ground piercing metal detector
03/07/2002CA2420738A1 Locatable magnetized polyethylene gas pipe distribution system
03/06/2002EP1183662A1 A method, a system, and a sensor for remote detection of objects, and a method for determining a length of a magnetic element
03/06/2002EP1183661A1 A tag for electronic article identification, a method for encoding an identity code into such a tag, and an apparatus for the identification thereof
03/06/2002EP0840869B1 Pipeline vehicle
03/05/2002US6353322 Method for automatically calibrating resistivity well logs for effects of change in wellbore diameter and circuit drift
03/05/2002US6353321 Uncompensated electromagnetic wave resistivity tool for bed boundary detection and invasion profiling
03/05/2002US6353320 Conveyance locating system and method for multiple conveyances on the same right-of-way
03/05/2002US6352002 Soil probing device with optical data transmission
03/05/2002US6351994 Sensor system for determining relative displacement of an object using an activation member
02/2002
02/28/2002US20020023362 Adjusting method of electronic azimuth meter, adjusting system of electronic azimuth meter, magnetic field generating apparatus, electronic azimuth meter and electronic timepiece having electronic azimuth meter
02/27/2002EP1182466A1 System of processing and presenting drill hole data
02/27/2002EP1158313A9 Article handling system
02/27/2002EP0799428B1 An impulse radar with swept range gate
02/27/2002CN2479516Y Cable romote transmitting logging unit