Patents
Sitemap › G01 - Measuring; Testing › G01V - Geophysics; Gravitational measurements; Detecting masses or objects; Tags › G01V 3 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation
Patents for G01V 3 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation (25,929)
04/2003
04/17/2003US20030071625 Locating arrangement and method using boring tool and cable locating signals
04/17/2003US20030071620 Nuclear magnetic resonance pulse sequence for optimizing instrument electrical power usage
04/17/2003US20030071617 Amplitude and/or phase modulated NMR pulse sequences
04/17/2003US20030070843 Electrically conductive oil-based mud
04/17/2003CA2847625A1 Airborne geophysical measurements
04/16/2003EP1301810A2 Nuclear magnetic resonance methods for extracting information about a fluid in a rock
04/16/2003EP1301809A2 3d-borehole radar antenna and algorithm, method and apparatus for subsurface surveys
04/16/2003EP1301808A2 Nuclear magnetic resonance measurements and methods of analyzing nuclear magnetic resonance data
04/16/2003EP1301800A1 Occupant sensor
04/16/2003EP1301776A2 Nuclear magnetic resonance tool with magnetostrictive noise compensation
04/16/2003EP0830566B1 Light beam range finder
04/16/2003CN1105921C General inductive near detector
04/15/2003US6549012 Radio system for characterizing and outlining underground industrial developments and facilities
04/15/2003US6549011 Conductor tracing system
04/15/2003US6546822 Seat occupant sensor device
04/15/2003CA2311323C Magnetic object tracking based on direct observation of magnetic sensor measurements
04/15/2003CA2256101C Method for improving the accuracy of nmr relaxation distribution analysis with two echo trains
04/15/2003CA2085048C Magnetic field analysis method for determining stress characteristics
04/10/2003WO2003029843A1 Magnetic saturation and coupling
04/10/2003WO2003029615A1 Apparatus for monitoring undergound formations
04/10/2003WO2002103395A3 System and methods for nmr signal processing without phase alternated pair stacking
04/10/2003WO2002056049A3 Microfluidic device with multiple microcoil nmr detectors
04/10/2003US20030067451 Capacitive touch detectors
04/10/2003US20030067301 Peripheral vascular array
04/10/2003US20030067293 Inductive Sensor arrangement and method for detecting of ferrous metal objects
04/10/2003US20030067292 Magnetic stud locator
04/09/2003EP1299741A1 Device for evaluating the density of protons present in a given body using nmr
04/09/2003EP1183662B1 A method, a system, and a sensor for remote detection of objects, and a method for determining a length of a magnetic element
04/09/2003EP1044247B1 Water soluble invert emulsions
04/09/2003CN1409105A Measuring method and probe for degree of saturation containing oil
04/08/2003US6546344 Magnetic anomaly sensor system
04/08/2003US6545945 Material classification apparatus and method
04/08/2003US6545614 Touch sensor identifying a body part
04/08/2003US6545603 Measuring device using an indirect measurement of permittivity
04/08/2003US6545477 Method and apparatus for determining the resistivity of a formation through which a cased well passes
04/08/2003US6545471 Method for resistivity well logging utilizing nuclear magnetic resonance
04/08/2003US6543550 Long range electronic guidance system for locating a discrete in-ground boring device
04/08/2003CA2235263C Apparatus and method for combined acoustic and seismoelectric logging measurements
04/03/2003WO2003027966A2 Security method for gaining access, access verification device, elevator
04/03/2003WO2003027716A1 In situ method for determining soil liquefaction tendency and its prevention by electro-osmosis
04/03/2003WO2003027659A1 Method for detecting metallic foreign matter and system for detecting metallic foreign matter
04/03/2003WO2002099462A3 System and methods for formation evaluation while drilling
04/03/2003WO2002073367B1 Method for merging position and measurement information
04/03/2003US20030063014 Shuttle-in receiver for radio-imaging underground geologic structures
04/03/2003US20030062902 Method and system for radio-imaging underground geologic structures
04/03/2003US20030062897 Peripheral vascular array
04/02/2003EP1298457A1 Inductive sensor arrangement and method for detecting of ferrous metal objects
04/02/2003EP1151310B1 Measuring method for a capacitive measuring system
04/02/2003EP0951613A4 Method for formation evaluation while drilling
04/02/2003EP0705430B1 Magnetic and transient electromagnetic diffusion inspection method and apparatus
04/02/2003CN1407351A Method, device and use of measuring flow speed in well hole by nuclear magnetic resonance
04/02/2003CN1407350A Underground signal communication and meaurement by metal tubing substance
04/02/2003CN1104768C Battery leasing system
04/02/2003CN1104648C Range-gated field disturbance sensor with range-sensitivity compensation
04/01/2003US6541979 Multi-coil electromagnetic focusing methods and apparatus to reduce borehole eccentricity effects
04/01/2003US6541977 Electronic water line tracer
04/01/2003US6541976 Under and above ground, radio frequency driven element, metal locating system
04/01/2003US6541969 Method and apparatus for improving the vertical resolution of NMR logs
04/01/2003US6541966 Precision metal locating apparatus
04/01/2003US6541965 Inductive sensor arrangement with field coils and sense coils, and methods for detecting ferrous objects
04/01/2003CA2285791C Apparatus and method for generating a pulse sequence
03/2003
03/27/2003WO2003025803A1 Method of imaging subsurface formations using a virtual source array
03/27/2003WO2003025625A1 Method and system for using conventional core data to calibrate bound water volumes derived from nmr logs
03/27/2003WO2003025622A2 Satellite and ground system for detection and forecasting of earthquakes
03/27/2003WO2003025619A2 Radar imaging apparatus
03/27/2003WO2003025613A2 Sub-surface radar imaging
03/27/2003WO2003025342A2 A method and apparatus for a multi-component induction instrumentmeasuring system
03/27/2003WO2003003025A9 Ultra sensitive magnetic field sensors
03/27/2003WO2002086542A3 A method and apparatus for identifying buried objects using ground penetrating radar
03/27/2003WO2002014907A9 Apparatus and method for synchronized formation measurement
03/27/2003US20030058961 Method and system for recovering information from a magnetic field signal usable for locating an underground object
03/27/2003US20030058957 Encoding scheme for producing magnetic field signals having desired spectral characteristics
03/27/2003US20030058126 Method and system for reducing interference
03/27/2003US20030058108 Method and system for producing a magnetic field signal usable for locating an underground object
03/27/2003US20030057950 Induction apparatus and method for determining dip angle in subterranean earth formations
03/27/2003US20030056600 Anti-entrapment system
03/27/2003CA2460455A1 Sub-surface radar imaging
03/27/2003CA2458614A1 Radar imaging apparatus
03/27/2003CA2458170A1 Method of imaging subsurface formations using a virtual source array
03/27/2003CA2455388A1 A method and apparatus for a multi-component induction instrument measuring system
03/26/2003EP1296160A1 Inductive proximity switch
03/26/2003EP1295271A2 Burst qam downhole telemetry system
03/26/2003CN1406340A Method and apparatus for determining the nature of subterranean reservoirs
03/25/2003US6539327 Process for determining the position of a moving object using magnetic gradientmetric measurements
03/25/2003US6538447 Compensated multi-mode elctromagnetic wave resistivity tool
03/25/2003US6538438 Methods and apparatus for measuring flow velocity in a wellbore using NMR and applications using same
03/20/2003WO2003023453A1 A method and apparatus for determining the resistivity of a formation surrounding a cased well
03/20/2003WO2003023452A1 Detection of subsurface resistivity contrasts with application to location of fluids
03/20/2003WO2003022641A1 Conductive e-field occupant sensing
03/20/2003WO2002095448A3 Active signal conditioning circuitry for well logging and monitoring while drilling nuclear magnetic resonance spectrometers
03/20/2003WO2002086541A3 Nmr logging in the earth's magnetic field
03/20/2003US20030055566 Efficient and accurate pseudo 2-D inversion scheme for multicomponent induction log data
03/20/2003US20030055565 Subsurface formation parameters from tri-axial measurements
03/20/2003US20030052777 Satellite and ground system for detection and forecasting of earthquakes
03/20/2003US20030052686 Probe for detecting the structure of a dielectric medium
03/20/2003US20030052685 Method and apparatus for determining the nature of subterranean reservoirs
03/20/2003US20030052684 Electromagnetic target discriminator sensor system and method for detecting and identifying metal targets
03/20/2003US20030052683 Flux plane locating in an underground drilling system
03/20/2003US20030052679 Magnetic gradient field projection
03/20/2003US20030052675 Methods and apparatus for measuring flow velocity in a wellbore using nmr and applications using same
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