| 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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| 05/13/2004 | DE4204294B4 Vorrichtung und Verfahren zum Messen von Lücken zwischen benachbarten Brennstäben einer Brennstoffkassette Apparatus and method for measuring gaps between adjacent fuel rods of a fuel assembly |
| 05/12/2004 | EP1417516A2 Downhole measurement of rock properties |
| 05/12/2004 | EP0886794B1 Method for performing inversion on lwd resistivity logs with enhanced resolution |
| 05/12/2004 | EP0886792B1 Determining a fluid fraction in an earth formation |
| 05/12/2004 | EP0815471B1 Open permanent magnet structure for generating highly uniform field |
| 05/12/2004 | CN2615678Y 聚焦式相位介电测井仪器 Focused phase dielectric logging instrument |
| 05/12/2004 | CN1495679A Theft-proof device |
| 05/12/2004 | CN1149406C Magnetic tag |
| 05/12/2004 | CN1149405C NMR Logging assembly |
| 05/12/2004 | CN1149404C Polar plate for high-temperature, high-pressure and micro-resistif scanning and imaging logging instrument |
| 05/12/2004 | CN1149386C Method of monitoring the diameter for cylindrical body made by injection process |
| 05/12/2004 | CN1149052C Probe Position and orientation magnetic mode determination device and method |
| 05/11/2004 | US6734675 Apparatus accurately measuring properties of a formation |
| 05/11/2004 | US6734674 Method for locating and inspecting underground or other non-visible non-electrically conductive pipes |
| 05/06/2004 | WO2004038455A1 Method and apparatus for detecting surveillance devices |
| 05/06/2004 | WO2004038453A2 Millimetre-wave detection device for discriminating between different materials |
| 05/06/2004 | WO2004027682A3 Simultaneous resolution enhancement and dip correction of resistivity logs through nonlinear iterative deconvolution |
| 05/06/2004 | WO2004025308A3 Nmr tool with helical polarization |
| 05/06/2004 | WO2003025625A9 Method and system for using conventional core data to calibrate bound water volumes derived from nmr logs |
| 05/06/2004 | US20040088114 Method for asymptotic dipping correction |
| 05/06/2004 | US20040085541 Method for recognizing objects |
| 05/06/2004 | EP1416300A2 System for detecting a magnet |
| 05/06/2004 | EP1415125A2 Object sensing |
| 05/06/2004 | EP1092163B1 Apparatus for detecting metals |
| 05/06/2004 | EP0788127B1 Electronic appliance and production method therefor |
| 05/06/2004 | DE10011230B4 Auswerteeinrichtung für ein Metallsuchgerät Evaluation for a metal detector |
| 05/04/2004 | US6731119 Proximity sensor and method for operating a proximity sensor |
| 05/04/2004 | US6731114 Apparatus with capacitive electrodes for measuring subsurface electrical characteristics in the subsoil |
| 05/04/2004 | CA2363789C Method and apparatus for cancellation of borehole effects due to a tilted or transverse magnetic dipole |
| 05/04/2004 | CA2361315C Multi-coil electromagnetic focusing methods and apparatus to reduce borehole eccentricity effects |
| 05/04/2004 | CA2259853C Apparatus and method for determining a drilling mode to optimize formation evaluation measurements |
| 05/04/2004 | CA2258772C Magnetic reading devices |
| 04/29/2004 | WO2004036255A1 Method and apparatus using a quadrupole transmitter in directionally sensitive induction tool |
| 04/29/2004 | US20040082342 Intruding object detecting apparatus, and setting apparatus, setting process and setting confirmation process therefor |
| 04/29/2004 | US20040080415 Method of and a system for surveillance of an environment utilising electromagnetic waves |
| 04/29/2004 | US20040080315 Object detection portal with video display overlay |
| 04/29/2004 | US20040079172 Proximity sensor system having proximity sensor with bipolar signal output |
| 04/29/2004 | DE10248891A1 Medical probe, especially for locating metal objects, e.g. nails, comprises an outer disposable housing and inner base unit containing evaluation electronics, so that sterilization is simplified |
| 04/29/2004 | DE10248714A1 Vorrichtung und Verfahren zur Detektion metallischer Objekte Apparatus and method for detecting metallic objects |
| 04/28/2004 | EP1414003A1 Device for detecting the presence of objects in a blind angle of a motor vehicle |
| 04/28/2004 | EP1311877A4 Side-looking nmr probe for oil well logging |
| 04/28/2004 | CN1492239A High resolution induction well logging method |
| 04/27/2004 | US6727707 Method and apparatus for a downhole antenna |
| 04/27/2004 | US6727706 Virtual steering of induction tool for determination of formation dip angle |
| 04/27/2004 | US6727705 Subsurface monitoring and borehole placement using a modified tubular equipped with tilted or transverse magnetic dipoles |
| 04/27/2004 | US6727704 Boring tool tracking/guiding system and method with unconstrained target location geometry |
| 04/27/2004 | US6727696 Downhole NMR processing |
| 04/27/2004 | CA2198628C Debris monitoring |
| 04/27/2004 | CA2001745C Downhole combination tool |
| 04/22/2004 | US20040075577 Induction logging antenna |
| 04/22/2004 | US20040075556 Failed filter arrest indicator and method for use in multiple arrester location |
| 04/22/2004 | US20040075259 Occupant detecting apparatus capable of improving detection accuracy |
| 04/22/2004 | DE20316887U1 Electromagnetic obstacle detection arrangement, e.g. for use with motor vehicle parking systems, comprises an antenna and a signal processing circuit that detects changes in the antenna feedback signal due to obstacle presence |
| 04/22/2004 | DE10246075A1 Drahtspule und Restdrahterkennungsverfahren Coil of wire and wire residue detection method |
| 04/21/2004 | EP1411373A2 Device and method for detecting metal objects |
| 04/21/2004 | EP1410062A2 Radar device |
| 04/21/2004 | EP0937330B1 A resonant power converter for energising a coil |
| 04/20/2004 | US6724198 Inductive sensory apparatus |
| 04/20/2004 | US6724192 Method and apparatus for exploration using GMR sensors |
| 04/20/2004 | US6724191 Systems and methods useful for detecting presence and/or location of various materials |
| 04/15/2004 | WO2004032279A2 Method and apparatus for a downhole antenna |
| 04/15/2004 | WO2004031808A1 Vector magnetic data processing |
| 04/15/2004 | WO2004031520A1 Anti-entrapment system |
| 04/15/2004 | US20040073371 Method of estimating electrical parameters of an earth formation with a simplified measurement device model |
| 04/15/2004 | US20040070535 Single and multi-trace omnidirectional sonde and line locators and transmitter used therewith |
| 04/15/2004 | US20040070399 Omnidirectional sonde and line locator |
| 04/15/2004 | CA2501121A1 Vector magnetic data processing |
| 04/15/2004 | CA2499750A1 Method and apparatus for a downhole antenna |
| 04/15/2004 | CA2444373A1 Asset recovery device |
| 04/14/2004 | EP0960345B1 Method for automatic detection of planar heterogeneities crossing the stratification of a medium |
| 04/14/2004 | CN1145983C Metallic glass alloys for mechanically resonant markere surveillance systems |
| 04/13/2004 | US6721660 Road extraction from images using template matching |
| 04/13/2004 | US6720771 Moving source dipole electromagnetic exploration device for deeper and poorer conductors and a method of detecting such conductors |
| 04/13/2004 | US6720765 High-resolution high-speed NMR well logging device |
| 04/13/2004 | CA2241543C Borehole logging system |
| 04/13/2004 | CA2168765C Conductor locator adapter for electronic markers |
| 04/08/2004 | WO2004029665A1 A method for resistivity anisotropy determination in conductive borehole environments |
| 04/08/2004 | WO2004029664A1 A method for resistivity anisotropy determination in near vertical wells |
| 04/08/2004 | WO2004029663A1 Device and process for determination of the resistivity of a formation surrounding a cased borehole |
| 04/08/2004 | WO2004029660A2 Fixed-depth of investigation log for multi-spacing multi-frequency lwd resistivity tools |
| 04/08/2004 | WO2004029562A2 Apparatus and method using continuous -wave radiation for detecting and locating targets hidden behind a surface |
| 04/08/2004 | US20040066194 Magnetic field generating assembly and method |
| 04/08/2004 | US20040066193 Methods and devices for dissolving hyperpolarised solid material for nmr analyses |
| 04/08/2004 | US20040066192 Method for reducing ringing in nuclear magnetic resonance measurements |
| 04/08/2004 | CA2693270A1 Ruggedized multi-layer printed circuit board based downhole antenna |
| 04/08/2004 | CA2500340A1 A method for resistivity anisotropy determination in conductive borehole environments |
| 04/08/2004 | CA2500337A1 A method for resistivity anisotropy determination in near vertical wells |
| 04/08/2004 | CA2499731A1 Fixed-depth of investigation log for multi-spacing multi-frequency lwd resistivity tools |
| 04/07/2004 | EP1406149A2 Capacitive sensing |
| 04/07/2004 | EP1405810A1 Wire bobbin and method for detecting remaining wire |
| 04/07/2004 | EP1405107A2 System and methods for formation evaluation while drilling |
| 04/07/2004 | EP1292932B1 Device for detecting magnetically marked paper and marked paper detectable by said device |
| 04/07/2004 | CN1488065A Device and method for identifying metal body |
| 04/07/2004 | CN1488064A 物体感测 Measuring sense objects |
| 04/07/2004 | CN1487307A Intrusion objects detecting apparatus and set-up device thereof |
| 04/06/2004 | US6717411 Electromagnetic method and apparatus for determining the nature of subterranean reservoirs using refracted electromagnetic waves |
| 04/06/2004 | US6717410 Bore location system |
| 04/06/2004 | US6717404 System and methods for formation evaluation while drilling |
| 04/06/2004 | CA2298457C Nuclear magnetic resonance well logging method and apparatus |
| 04/04/2004 | CA2442184A1 Method for reducing ringing in nuclear magnetic resonance measurements |