| 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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| 07/29/2003 | US6600321 Apparatus and method for wellbore resistivity determination and imaging using capacitive coupling |
| 07/29/2003 | US6600320 Apparatus with movable receiver coil array for locating a buried metallic object |
| 07/29/2003 | US6600319 Magnetic resonance imaging device |
| 07/29/2003 | US6600316 Rapid NMR multi-frequency T1 and T2 acquisition for earth formations evaluation with MWD or wireline tools |
| 07/29/2003 | US6600315 Method for improving resolution of nuclear magnetic resonance measurements by combining low resolution high accuracy measurements with high resolution low accuracy measurements |
| 07/29/2003 | US6600284 System for detecting obstacles |
| 07/29/2003 | US6600202 Compact sensing apparatus having reduced cross section and methods of mounting same |
| 07/29/2003 | US6598687 Three dimensional steerable system |
| 07/29/2003 | CA2306342C Nuclear magnetic resonance measurements in well logging using an optimized rephasing pulse sequence |
| 07/24/2003 | US20030137420 System and method for scanning individuals for illicit objects |
| 07/24/2003 | US20030137301 Well logging system for determining resistivity using multiple transmitter-receiver groups operating at three frequencies and at optimized gain |
| 07/24/2003 | US20030137300 Variable capacitor, filter and NMR sensor comprising such a capacitor |
| 07/24/2003 | US20030137297 Nuclear magnetic resonance imaging using phase encoding |
| 07/24/2003 | US20030136249 Mine detector and inspection apparatus |
| 07/24/2003 | CA2801837A1 Intelligent station using multiple rf antennae and inventory control system and method incorporating same |
| 07/23/2003 | EP1329916A1 Variable capacitor, filter and NMR probe containing such a capacitor |
| 07/23/2003 | EP1329742A2 Device for detecting metal objects |
| 07/23/2003 | EP1328832A1 Method for determination of apparent resistivities of anisotropic reservoirs |
| 07/23/2003 | EP1328831A2 Powerful bonded nonconducting permanent magnet for downhole use |
| 07/23/2003 | EP1328830A1 Nmr sequence for optimizing instrument electrical power usage |
| 07/23/2003 | EP1328829A1 Combined characterization and inversion of reservoir parameters from nuclear, nmr and resistivity measurements |
| 07/23/2003 | EP1204887A4 Method for radial profiling of resistivity at multiple depths of investigation |
| 07/22/2003 | US6597993 High resolution array induction tool |
| 07/22/2003 | US6597992 Soil and topography surveying |
| 07/22/2003 | US6597633 Method for electrolinetic downhole logging |
| 07/22/2003 | US6597178 Sensor for detecting the magnetic field in the area of downhole casing |
| 07/22/2003 | US6597177 Through casing resistivity measurement in permanently installed downhole production environment |
| 07/22/2003 | US6597171 Nuclear magnetic resonance methods for extracting information about a fluid in a rock |
| 07/22/2003 | US6597170 Optimal excitation pulse shaping for multi-frequency measurements in NMR logging |
| 07/17/2003 | WO2003058277A2 Metal detector integrated with site-existing pathway |
| 07/17/2003 | WO2003036040A3 In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor |
| 07/17/2003 | WO2002084332B1 Measurement technique and apparatus for high-resolution multi-volume nmr well logging |
| 07/17/2003 | US20030135762 Wireless networks security system |
| 07/17/2003 | US20030135332 Circuit and method for pipelined code sequence searching |
| 07/17/2003 | US20030135328 Method for merging position information with measurements and filtering to obtain high-quality images that are positioned accurately with respect to global coordinates |
| 07/17/2003 | US20030132873 Method for obtaining underground imagery using a ground-penetrating radar |
| 07/17/2003 | US20030132763 Capacitance-based sensing device for detecting presence of body part |
| 07/17/2003 | US20030132751 Radio-imaging of underground structures |
| 07/17/2003 | US20030132749 Detecting tool motion effects on nuclear magnetic resonance measurements |
| 07/17/2003 | US20030132033 Electrically conductive non-aqueous wellbore fluid |
| 07/17/2003 | DE10207723C1 Use of chromium-doped magnesium oxide with enriched chromium isotope as reference substance for electron spin resonance dosimetry |
| 07/17/2003 | DE10207711C1 Test head for electron spin resonance dosimeter has attachment for feeding sample to resonator provided with opening for manual loading of dosimeter capsule |
| 07/16/2003 | CN1114835C Improved magnetic tags of markers |
| 07/16/2003 | CN1114834C 4-electrode electric measuring method for measuring and calculating appearance AC conductivity of ground |
| 07/15/2003 | US6594584 Method for calculating a distance between a well logging instrument and a formation boundary by inversion processing measurements from the logging instrument |
| 07/15/2003 | US6593754 Compact subsurface object locator |
| 07/15/2003 | US6593746 Method and system for radio-imaging underground geologic structures |
| 07/15/2003 | US6593745 Tracking system using locating signal measurements to regionally confine a boring tool relative to a measurement location |
| 07/15/2003 | US6591673 Methods for identifying fluid types of underground formations |
| 07/15/2003 | CA2271102C A resonant power converter for energising a coil |
| 07/14/2003 | CA2415921A1 Method and apparatus for full offset resistivity imaging for use in boreholes |
| 07/10/2003 | WO2003056364A1 Method for measuring distortions in a field |
| 07/10/2003 | WO2003056353A2 Compact, autonomous robotic detection and identification sensor system of unexploded ordnance site remediation |
| 07/10/2003 | WO2003036032A3 In situ thermal processing of a hydrocarbon containing formation to produce heated fluids |
| 07/10/2003 | US20030128132 Detector having remote dialogue facilities |
| 07/10/2003 | US20030128116 Human body detecting device |
| 07/10/2003 | US20030128032 Method for determining molecular properties of hydrocarbon mixtures from NMR data |
| 07/10/2003 | DE20308306U1 Orientation system for the blind comprises ground positioned magnetic markers positioned at regular intervals along a predetermined route so that a blind person can follow the route using a stick equipped with a magnetic sensor |
| 07/09/2003 | EP1325708A2 Implantable and insertable passive tags |
| 07/09/2003 | EP1325481A1 Apparatus and circuit for use with capacitive presence detection systems |
| 07/09/2003 | EP1103003A4 Radar ice sounder with parallel doppler processing |
| 07/09/2003 | EP0819951B1 Method and apparatus for diastrophism prediction |
| 07/09/2003 | CA2414789A1 Wireless networks security system |
| 07/08/2003 | US6591195 Method of and apparatus for independently determining the resistivity and/or dielectric constant of an earth formation |
| 07/08/2003 | US6591194 Vertical 1-D inversion with thin layers of equal thickness |
| 07/08/2003 | US6590401 Capacitive proximity switch for evaluating minor changes in capacitance and method therefor |
| 07/03/2003 | WO2003054825A2 Detectable components and detection apparatus for detecting such components |
| 07/03/2003 | WO2003054585A1 System and method for measuring resistivity through casing |
| 07/03/2003 | WO2003054584A1 Device and method for detecting the presence of a shopping trolley in a location |
| 07/03/2003 | WO2003053533A2 Detection apparatus and component detectable by the detection apparatus |
| 07/03/2003 | WO2003036035A3 In situ upgrading of coal |
| 07/03/2003 | WO2003036031A3 Seismic monitoring of in situ conversion in a hydrocarbon containing formation |
| 07/03/2003 | WO2003035811A9 Remediation of a hydrocarbon containing formation |
| 07/03/2003 | WO2003025622A3 Satellite and ground system for detection and forecasting of earthquakes |
| 07/03/2003 | US20030122547 System and method for measuring resistivity through casing |
| 07/03/2003 | US20030122067 Formation evaluation through azimuthal tool-path identification |
| 07/03/2003 | CA2471008A1 System and method for measuring resistivity through casing |
| 07/02/2003 | EP1324494A1 Detector having remote programming facilities |
| 07/02/2003 | EP1324364A2 Human body detecting device |
| 07/02/2003 | EP1324077A2 Method and device for detecting metal objects |
| 07/02/2003 | EP1322976A2 Proximity sensor cable compensation using multiple frequencies |
| 07/02/2003 | EP0901642B1 Pulse homodyne field disturbance sensor |
| 07/02/2003 | EP0740822B1 Metal detection system |
| 07/02/2003 | CN1427958A Buried object management system |
| 07/02/2003 | CN1427955A Detecting errors in determination of magnetic location or orientation |
| 07/02/2003 | CN1427254A Method for determining mulecule character of hydrocarbon mixture by nuclear magnetic resonance data |
| 07/02/2003 | CN1113248C Method for measuring and compensating for spatially and temporally varying magnetic fields induced by eddy currents |
| 07/01/2003 | US6586939 Method and apparatus for reducing the effects of parasitic and galvanic currents in a resistivity measuring tool |
| 07/01/2003 | US6586938 Metal detector method and apparatus |
| 07/01/2003 | US6586937 Magnetic signature detector for detection of magnetic buried targets |
| 07/01/2003 | US6586932 Enhanced performance antennas for NMR logging |
| 07/01/2003 | US6586931 NMR logging in the earth's magnetic field |
| 06/28/2003 | CA2411213A1 Improved formation evaluation through azimuthal tool-path identification |
| 06/26/2003 | WO2003052669A1 System and method for enhanced hydrocarbon recovery |
| 06/26/2003 | WO2003052460A1 Method of processing marine magnetic gradient data and exploration methods using that data |
| 06/26/2003 | US20030117142 Measurement of subterranean lithology using electromagnetic energy |
| 06/26/2003 | US20030117140 Peripheral vascular array |
| 06/26/2003 | US20030117134 Downhole magnetic-field based feature detector |
| 06/26/2003 | US20030117133 Non-invasive detectors for wells |
| 06/25/2003 | EP1321780A1 Retrievable, formation resistivity tool, having a slotted collar |