| 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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| 11/12/2002 | US6480000 Device and method for measurement of resistivity outside of a wellpipe |
| 11/12/2002 | US6479993 Method of detecting foreign matter and apparatus therefor |
| 11/12/2002 | US6477795 Excavator data acquisition and control system and process |
| 11/07/2002 | WO2002088775A1 Estimation of transversal motion of the nmr tool during logging |
| 11/07/2002 | WO2002088627A1 Measurements of coating on metal |
| 11/07/2002 | WO2002068994A3 Improved material classification apparatus and method |
| 11/07/2002 | WO2002041033A3 A method and apparatus for passive detection of geophysical discontinuities in the earth |
| 11/07/2002 | WO2001086116A1 Measuring device for detecting a body moving in relation to a tubular container |
| 11/07/2002 | US20020163346 Detector apparatus and method |
| 11/07/2002 | US20020163335 Method and apparatus for nuclear magnetic resonance measuring while drilling |
| 11/07/2002 | US20020163334 NMR logging using time-domain averaging |
| 11/07/2002 | DE10157770C1 Metal detector with increased operating efficiency due to provision of a voltage tap between the driving oscillator circuit and the transmitter coil so that magnetic field strength can be optimized |
| 11/07/2002 | DE10131243C1 Capacitive proximity switch e.g. for production line robot, uses difference signal between 2 screened sensor electrodes |
| 11/07/2002 | CA2424284A1 Measuring device for detecting a body moving in relation to a tubular container |
| 11/06/2002 | EP1255128A1 Nuclear magnetic resonance apparatus and method for generating a plurality of axisymmetric magnetic fields |
| 11/06/2002 | EP1255127A2 Method of mapping going conditions for a race course |
| 11/06/2002 | CN1378652A Remote reservoir resistivity mapping |
| 11/05/2002 | US6477469 Coarse-to-fine self-organizing map for automatic electrofacies ordering |
| 11/05/2002 | US6477113 Source waveforms for electroseismic exploration |
| 11/05/2002 | US6476610 Magnetic anomaly sensing system and methods for maneuverable sensing platforms |
| 11/05/2002 | US6476609 Electromagnetic wave resistivity tool having a tilted antenna for geosteering within a desired payzone |
| 11/05/2002 | US6476608 Combining seismic waves with seismoelectrics to perform prospecting and measurements |
| 10/31/2002 | WO2002086833A1 Antitheft system |
| 10/31/2002 | WO2002086545A1 Measurement of subterranean lithology using electromagnetic energy |
| 10/31/2002 | WO2002086544A1 Methods and apparatus for measuring electrical properties of a ground using a graphite electrode |
| 10/31/2002 | WO2002086542A2 A method and apparatus for identifying buried objects using ground penetrating radar |
| 10/31/2002 | WO2002086541A2 Nmr logging in the earth's magnetic field |
| 10/31/2002 | WO2002086459A1 An apparatus and method for wellbore resistivity determination and imaging using capacitive coupling |
| 10/31/2002 | US20020159334 Material classification apparatus and method |
| 10/31/2002 | DE10121137A1 Probe for determining ground and sediment contamination has probe housing of small diameter and magnetic susceptibility sensor located in tubular probe that is suspended on a toothed belt |
| 10/31/2002 | CA2445034A1 Nmr logging in the earth's magnetic field |
| 10/31/2002 | CA2444942A1 An apparatus and method for wellbore resistivity determination and imaging using capacitive coupling |
| 10/30/2002 | EP1252534A1 Method for obtaining underground imagery using a ground-penetrating radar |
| 10/29/2002 | US6473025 Landmine locating system |
| 10/24/2002 | WO2002084332A1 Measurement technique and apparatus for high-resolution multi-volume nmr well logging |
| 10/24/2002 | WO2002084228A1 Capacitive sensor element and method for producing a capacitive sensor element |
| 10/24/2002 | WO2002014907B1 Apparatus and method for synchronized formation measurement |
| 10/24/2002 | WO2001055748A9 Multi-depth focused resistivity imaging tool for logging while drilling applications |
| 10/24/2002 | US20020153905 Electronic water line tracer |
| 10/24/2002 | US20020153897 Apparatus and method for wellbore resistivity imaging using capacitive coupling |
| 10/24/2002 | US20020153896 Electrical measurement apparatus and method for measuring an electrical characteristic of an earth formation |
| 10/24/2002 | US20020153894 Peripheral vascular array |
| 10/24/2002 | US20020153888 Downhole NMR processing |
| 10/24/2002 | US20020153887 NMR logging in the earth's magnetic field |
| 10/24/2002 | US20020153136 Method and apparatus for a downhole NMR MWD tool configuration |
| 10/24/2002 | DE10118061A1 Capacitative sensor element comprises numerous electrodes which interlock, made of metal plates that are held by a plastic holding element |
| 10/23/2002 | CN2518116Y Nuclear magnetic resonance ground water layer detecting instrument |
| 10/23/2002 | CN1093300C Identifier for magnetomechanical elements for use in electronic carticle surveillance system and method of making same |
| 10/22/2002 | US6470274 Water saturation and sand fraction determination from borehole resistivity imaging tool, transverse induction logging and a tensorial dual water saturation model |
| 10/22/2002 | US6469627 Mounting clip having a wireless communication device |
| 10/22/2002 | US6469624 Non-obtrusive weapon detection system |
| 10/17/2002 | WO2002082353A1 Determination of formation anisotropy using multi-frequency processing of induction measurements with transverse induction coils |
| 10/17/2002 | US20020151779 Susceptometers for foreign body detection |
| 10/17/2002 | US20020149997 2-D inversion of multi-component induction logging data to resolve anisotropic resistivity structure |
| 10/17/2002 | US20020149376 Proximity sensor and method for operating a proximity sensor |
| 10/17/2002 | US20020149369 Microfluidic device with multiple microcoil NMR detectors |
| 10/17/2002 | CA2443514A1 Determination of formation anisotropy using multi-frequency processing of induction measurements with transverse induction coils |
| 10/16/2002 | EP1194740B1 Electrical sensor for measuring capacitance change and conversion into a voltage signal |
| 10/16/2002 | CN1092743C Hole finding apparatus having integrated sensor and its method |
| 10/15/2002 | US6466872 Method for determination of apparent resistivities of anisotropic reservoirs |
| 10/15/2002 | US6466021 Deep underground imaging utilizing resistivity regularization for magnetotelluric processing |
| 10/15/2002 | US6466020 Electromagnetic borehole surveying method |
| 10/15/2002 | US6466013 Nuclear magnetic resonance measurements in well logging using an optimized rephasing pulse sequence |
| 10/10/2002 | WO2002079808A1 Magnetic resonance fluid analysis apparatus and method |
| 10/10/2002 | WO2002056444A3 Powerful bonded nonconducting permanent magnet for downhole use |
| 10/10/2002 | US20020145530 Conductor detecting device |
| 10/10/2002 | US20020145423 Magnetically activated well tool |
| 10/10/2002 | DE10204569A1 Hand-held location device for installation lines embedded in wall surface uses capacitive sensor with measuring capacitor having one electrode provided by conductive surface of sensor housing |
| 10/09/2002 | EP1247119A1 Method and apparatus of electrical resistivity measurements in geological formations employing modeling data |
| 10/09/2002 | EP1246993A1 Three dimensional steerable system |
| 10/08/2002 | US6462549 Method and system for electroseismic monitoring of microseismicity |
| 10/08/2002 | US6462542 Nuclear magnetic resonance measurements and methods of analyzing nuclear magnetic resonance data |
| 10/03/2002 | WO2002076294A2 Simplified water-bag technique for magnetic susceptibility measurements on the human body and other specimens |
| 10/03/2002 | WO1997034168A3 System and method for performing inversion on lwd resistivity logs with enhanced resolution |
| 10/03/2002 | US20020140596 Landmine locating system |
| 10/03/2002 | US20020140429 Boring technique using locate point measurements for boring tool depth prediction |
| 10/03/2002 | US20020140425 Magnetic resonance fluid analysis apparatus and method |
| 10/03/2002 | US20020140424 NMR apparatus for oil well logging of large and small diameter wells |
| 10/03/2002 | CA2442614A1 Simplified water-bag technique for magnetic susceptibility measurements on the human body and other specimens |
| 10/02/2002 | EP1244923A1 An apparatus accurately measuring properties of a formation |
| 10/02/2002 | EP1244922A2 Magnetic resonance imaging device |
| 10/02/2002 | EP1218762A4 Propagation of waves through materials |
| 10/02/2002 | EP1104358B1 System for detecting obstacles |
| 10/02/2002 | EP0880679B1 Method and apparatus for sensing proximity or position of an object using near-field or magnetic effects |
| 10/01/2002 | US6459973 Arrangements for detecting the presence or location of an object in a vehicle and for controlling deployment of a safety restraint |
| 10/01/2002 | US6459266 Sonde locator |
| 10/01/2002 | US6459263 Nuclear magnetic resonance measurements in well logging using motion triggered pulsing |
| 10/01/2002 | US6459262 Toroidal receiver for NMR MWD |
| 09/26/2002 | WO2002075364A1 Detecting a boundary in a formation |
| 09/26/2002 | WO2002075360A2 Method for locating and inspecting underground or other non-visible non-electrically conductive pipes |
| 09/26/2002 | WO2002075113A1 Electromagnetic borehold surveying method |
| 09/26/2002 | US20020135347 Subsurface object locator improvements |
| 09/26/2002 | US20020134448 Locatable magnetic polyethylene gas pipe distribution system |
| 09/26/2002 | CA2441924A1 Detecting a boundary in a formation |
| 09/25/2002 | EP1242963A1 Interferometric processing method to identify bed boundaries |
| 09/25/2002 | CN1091521C Location marking system and marker for use in the system |
| 09/24/2002 | US6456079 Circuit for detecting the metal type of a metal target object |
| 09/24/2002 | US6456067 Inductive product sensor for a refreshment center |
| 09/24/2002 | US6456053 Metal detector for finding wall studs |
| 09/24/2002 | CA2242223C Method and system for sensing and locating a person, e.g. under an avalanche |