| 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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| 06/04/2002 | US6400147 Downhole NMR tool having a programmable pulse sequencer |
| 06/04/2002 | US6400139 Methods and apparatus for electromagnetic position and orientation tracking with distortion compensation |
| 06/04/2002 | CA2196634C Well logging method and apparatus |
| 05/30/2002 | US20020063652 Method and apparatus for determining the location of underground objects during a digging operation |
| 05/29/2002 | DE19933911C2 Meßvorrichtung zur Erkennung von verdeckten ferromagnetischen Strukturen, nämlich Trapezblechen in unteren Schichten eines Dachaufbaus Measuring device for detection of hidden ferromagnetic structures, namely trapezoidal panels in the lower layers of the roof structure |
| 05/29/2002 | CN1351262A Failure tester for electric power cable |
| 05/28/2002 | US6397136 System for determining the occupancy state of a seat in a vehicle |
| 05/28/2002 | US6396433 Talking buried object detector |
| 05/28/2002 | US6396276 Apparatus and method for electric field telemetry employing component upper and lower housings in a well pipestring |
| 05/28/2002 | US6396275 Arrangement using measured pitch and locating field measurements to determine a positional relationship |
| 05/28/2002 | US6396265 Methods and apparatus for non-destructive control and forecasting concrete strength |
| 05/28/2002 | CA2209918C Method of monitoring fluids entering a wellbore |
| 05/23/2002 | WO2002041033A2 A method and apparatus for passive detection of geophysical discontinuities in the earth |
| 05/23/2002 | WO2002041032A2 Through casing resistivity measurement in permanently installed downhole production environment |
| 05/23/2002 | WO2002040087A1 Detectable heavy duty needle |
| 05/23/2002 | WO2002008795A3 Nuclear magnetic resonance measurements and methods of analyzing nuclear magnetic resonance data |
| 05/23/2002 | WO2001084188A3 Steerable three-dimensional magnetic field sensor system for detection and classification of metal targets |
| 05/23/2002 | WO2001042817A9 Nuclear magnetic resonance method and logging apparatus |
| 05/23/2002 | US20020062074 Medical broad band electromagnetic holographic imaging |
| 05/23/2002 | US20020061823 Disposing electrical well-logging tool in modified electroconductive fluid to survey borehole penetrating an earth formation containing said fluid |
| 05/22/2002 | EP1206759A1 Magnetic sensor |
| 05/22/2002 | EP1206713A1 Multi-frequency electromagnetic wave resistivity tool with improved calibration measurement |
| 05/22/2002 | EP0960408A4 Magnetostrictive element having optimized bias-field-dependent resonant frequency characteristic |
| 05/22/2002 | EP0829020B1 Narrow field electromagnetic sensor system and method |
| 05/21/2002 | US6393364 Determination of conductivity in anisotropic dipping formations from magnetic coupling measurements |
| 05/21/2002 | US6393363 Method and apparatus for the measurement of the electrical resistivity of geologic formations employing modeling data |
| 05/21/2002 | US6392542 Occupant sensor |
| 05/21/2002 | US6392421 Spectral EM frequency metallic thickness measurement using metallic transparencies |
| 05/21/2002 | US6392410 Nuclear magnetic resonance apparatus and method for generating an axisymmetric magnetic field having straight contour lines in the resonance region |
| 05/21/2002 | US6392409 Determination of T1 relaxation time from multiple wait time NMR logs acquired in the same or different logging passes |
| 05/21/2002 | US6392408 Method and system for cancellation of extraneous signals in nuclear quadrupole resonance spectroscopy |
| 05/16/2002 | WO2001098618A3 Burst qam downhole telemetry system |
| 05/16/2002 | US20020057210 Modified tubular equipped with a tilted or transverse magnetic dipole for downhole logging |
| 05/15/2002 | EP1204887A1 Method for radial profiling of resistivity at multiple depths of investigation |
| 05/15/2002 | EP1066178B1 Method for capacitative object recognition in motor vehicles |
| 05/15/2002 | CN1349614A Method and apparatus for determing the resistivity of a formation through which a cased well passes |
| 05/15/2002 | CN1349109A Three axial magnetic sensor, all direction magnetic sensor, and direction testing method therewith |
| 05/14/2002 | US6388441 Method for processing NMR data without phase-alternating-pair (PAP) averaging |
| 05/10/2002 | WO2002037132A1 Methods and devices for dissolving hyperpolarised solid material for nmr analyses |
| 05/09/2002 | US20020054798 Hand-held tool containing a removably attachable object sensor |
| 05/09/2002 | US20020053909 Interference cancelling metal detector |
| 05/09/2002 | US20020053908 Ground mineralisation rejecting metal detector (receive signal weighting) |
| 05/09/2002 | US20020053907 Ground mineralisation rejecting metal detector (power saving) |
| 05/08/2002 | EP1203359A2 Signal processsing for object detection system |
| 05/08/2002 | EP1203242A1 Nmr apparatus and methods for measuring volumes of hydrocarbon gas and oil |
| 05/08/2002 | DE10060450A1 Device for monitoring sealing layers used with earthworks, etc. has an array of sensors connected by cables for monitoring potential distributions, with a voltage surge protection device to protect against lightening strikes |
| 05/08/2002 | DE10052024A1 Ground search radar operated at two points equidistant from sub-soil objects |
| 05/08/2002 | CN1348546A A method and apparatus for determining the resistivity of a formation through which a cased well passes |
| 05/07/2002 | US6385545 Method and apparatus for determining dip angle and horizontal and vertical conductivities |
| 05/07/2002 | US6385482 Device and process for determining position |
| 05/07/2002 | US6384605 Method and apparatus for measurement of borehole size and the resistivity of surrounding earth formations |
| 05/07/2002 | US6384305 Method and apparatus for sensing key movement in a musical keyboard |
| 05/07/2002 | CA2193066C Nuclear magnetic resonance determination of petrophysical properties of geologic structures |
| 05/07/2002 | CA2119395C Method and apparatus for determining formation resistivity in a cased well |
| 05/02/2002 | WO2002035259A1 Device for remote detecting of articles hidden under clothes |
| 05/02/2002 | US20020050822 Ground mineralisation rejecting metal detector |
| 05/02/2002 | EP1202077A2 Mutual crosstalk elimination in medical systems |
| 05/02/2002 | EP1202076A1 Method and apparatus for use in location of conductors |
| 05/02/2002 | EP1105749B1 Method and device for detecting objects, especially used as a parking assistance device in a motor vehicle |
| 05/02/2002 | EP0877961B1 Borehole logging system |
| 04/30/2002 | US6381542 Generic, accurate, and real time borehole correction for resistivity tools |
| 04/30/2002 | US6380868 Permeability-modulated carrier referencing |
| 04/30/2002 | US6380745 Electrical geophysical apparatus for determining the density of porous materials and establishing geo-electric constants of porous material |
| 04/30/2002 | US6380744 Shielding apparatus for selective attenuation of an electromagnetic energy field component |
| 04/30/2002 | US6380743 Flexible traceable push rod |
| 04/30/2002 | US6378900 Occupant detection system |
| 04/25/2002 | WO2002033444A1 Method for processing nmr data without phase-alternating-pair (pap) averaging |
| 04/25/2002 | US20020047709 Detecting underground conductors |
| 04/25/2002 | US20020046600 System of processing and presenting drill hole data |
| 04/25/2002 | DE10048362A1 Verfahren und Anordnung zur Erfassung von Verkehrsdaten mittels Detektion und Klassifikation sich bewegender oder stehender Fahrzeuge Method and apparatus for detecting traffic data by means of detection and classification of moving or stationary vehicles |
| 04/24/2002 | CN2488073Y Detector for magnetic body |
| 04/24/2002 | CN2488072Y Omnibearing electromagnetic anti-theft monitor |
| 04/24/2002 | CN1346555A Method and apparatus for determining position in pipe |
| 04/23/2002 | US6377050 LWD resistivity device with inner transmitters and outer receivers, and azimuthal sensitivity |
| 04/23/2002 | US6377041 Method and apparatus for determining electromagnetic field characteristics within a volume |
| 04/23/2002 | US6376939 Sensor apparatus and safety apparatus for protecting approach to machines |
| 04/23/2002 | CA2264325C Nuclear magnetic resonance apparatus and method for generating an axisymmetric magnetic field having straight contour lines in the resonance region |
| 04/23/2002 | CA2230902C Radial nmr well logging apparatus and method |
| 04/23/2002 | CA2218998C Method and apparatus for determining a zone in an object exhibiting a highest level of structural organization |
| 04/18/2002 | WO2002031537A1 Method for calibrating relative permittivity of electromagnetic detector and electromagnetic detector |
| 04/18/2002 | WO2002008794A3 Method and apparatus for producing an electrical property image using a charge correlation matrix |
| 04/18/2002 | WO2002008789A3 Nuclear magnetic resonance methods for extracting information about a fluid in a rock |
| 04/18/2002 | US20020044078 Subsurface exploratory radar detector for a hand tool device |
| 04/18/2002 | US20020043977 Determining resistivity of a formation adjacent to a borehole having casing with an apparatus having all current conducting electrodes within the cased well |
| 04/18/2002 | US20020043976 Modular electromagnetic sensing apparatus |
| 04/17/2002 | EP1197762A2 Underground detecting radar for hand tool |
| 04/17/2002 | EP0811209B1 Method and apparatus for detecting an electroconductive element in a document |
| 04/17/2002 | CN2486979Y Micro ball density integrated logging sidewall contact device |
| 04/16/2002 | US6374134 Simultaneous display during surgical navigation |
| 04/16/2002 | US6373388 Coding articles |
| 04/16/2002 | US6373386 Process and device for producing anti-theft elements for electronic anti-theft securing of articles |
| 04/16/2002 | US6373254 Method and apparatus for controlling the effect of contact impedance on a galvanic tool in a logging-while-drilling application |
| 04/16/2002 | US6373253 High-frequency electric field measurement using a toroidal antenna |
| 04/16/2002 | US6373252 Method and apparatus locating a cable in a pipe |
| 04/16/2002 | US6373248 Nuclear magnetic resonance logging with azimuthal resolution |
| 04/16/2002 | US6373244 Apparatus for marking a surface indicating elements located inwardly of the surface |
| 04/16/2002 | US6371379 Magnetic tags or markers |
| 04/16/2002 | CA2272997C Prediction of permeability from capillary pressure curves derived with nmr |
| 04/16/2002 | CA2057513C Device and method for real-time monitoring of accidental damage to the protective covering of underground or immersed metal structures or pipelines |
| 04/14/2002 | CA2363337A1 Surveying geophysical properties in wells for expropriation of minerals and tool therefor |