| 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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| 03/11/1997 | US5610523 Method and apparatus of interrogating a volume of material beneath the ground including an airborne vehicle with a detector being synchronized with a generator in a ground loop |
| 03/11/1997 | US5610522 Open magnetic structure including pole pieces forming a V-shape threbetween for high homogeneity in an NMR device |
| 03/11/1997 | US5610518 Method and apparatus for detecting small magnetizable particles and flaws in nonmagnetic conductors |
| 03/06/1997 | DE19634816A1 Capacitive multipurpose sensor, esp. for detecting several parameters of hydraulic system |
| 03/06/1997 | DE19608902C1 Magnetic anomalies in ground detection method using magnetic field probes or sounds |
| 03/05/1997 | EP0760147A1 Anti counterfeit apparatus and method |
| 03/05/1997 | EP0714521A4 Method and apparatus for compensation of field distortion in a magnetic structure using spatial filter |
| 03/04/1997 | US5608323 Arrangement of the electrodes for an electrical logging system for determining the electrical resistivity of a subsurface formation |
| 03/04/1997 | US5608316 Apparatus for detecting particles in a fluid and a method for operating same |
| 03/04/1997 | US5607205 Object responsive implement control system |
| 03/04/1997 | CA2093938C Deactivatable/reactivatable magnetic marker having a step change in magnetic flux |
| 02/27/1997 | WO1997007416A1 System for and method of determining the location of an object in a medium |
| 02/26/1997 | EP0759563A2 Apparatus and method for measuring the resistivity of underground formations |
| 02/26/1997 | CN1143753A Borehole seismic electric detecting method |
| 02/26/1997 | CN1143752A Detector for body and organism |
| 02/25/1997 | US5606499 Method and apparatus for determining a zone in an object exhibiting a highest level of structural organization |
| 02/25/1997 | US5606260 Microdevice for measuring the electromagnetic characteristics of a medium including a shield |
| 02/25/1997 | US5605768 Magnetic marker and manufacturing method therefor |
| 02/20/1997 | WO1997006447A1 Short range radio locator system |
| 02/20/1997 | WO1997005760A2 Ultra-wideband directional sampler |
| 02/19/1997 | EP0758457A1 Locator |
| 02/19/1997 | CN1143419A Reproduction apparatus with microwave detection |
| 02/13/1997 | WO1997005460A1 Variable frequency microwave tropopause sensor system and method |
| 02/12/1997 | EP0758095A2 Method for geoelectric measurement and electrode array therefor |
| 02/11/1997 | US5600942 Adaptive thresholding for metal detection |
| 02/11/1997 | US5600941 Compensation for start-up transients |
| 02/06/1997 | WO1997004473A1 Electronic appliance and production method therefor |
| 02/06/1997 | WO1997004338A1 Improvements relating to magnetic tags of markers |
| 02/06/1997 | WO1997004337A1 Object detection apparatus |
| 02/06/1997 | WO1997004322A1 System and method for measuring the total electron content of the ionosphere |
| 02/06/1997 | WO1996041134A3 Method and apparatus for sensing proximity or position of an object using near-field or magnetic effects |
| 02/06/1997 | CA2227226A1 System and method for measuring the total electron content of the ionosphere |
| 02/05/1997 | EP0756763A1 Antenna arrangement |
| 02/05/1997 | CN1142266A Method and apparatus for detection and method of configuring such apparatus |
| 02/05/1997 | CN1142095A Location marking system and marker for use in system |
| 02/04/1997 | US5600246 Method and apparatus for reducing signal-phase error in induction well logging instruments |
| 01/29/1997 | EP0756427A1 System and method for detecting a signal in a noisy environment |
| 01/29/1997 | EP0700528A4 Electromagnetic hidden object detector |
| 01/28/1997 | CA2178768A1 System and method for detecting a signal in a noisy environment |
| 01/22/1997 | EP0754307A1 Fluid detection means |
| 01/22/1997 | CN1141079A Detection of counterfeit articles |
| 01/21/1997 | US5596277 Method and apparatus for displaying signal information from a metal detector |
| 01/21/1997 | US5596274 Determining bound and unbound fluid volumes using nuclear magnetic resonance pulse sequences |
| 01/21/1997 | US5596266 Metal particle detecting sensor, metal particle detecting method and metal particle detecting apparatus |
| 01/16/1997 | WO1997001772A1 Nmr system and method for formation evaluation using diffusion and relaxation log measurements |
| 01/16/1997 | WO1997001771A1 Apparatus and method for detecting and imaging metal |
| 01/16/1997 | WO1996030913A3 System and method for contraband detection using nuclear quadrupole resonance |
| 01/15/1997 | EP0670073B1 A capacitive verification device for a security thread embedded within currency paper |
| 01/14/1997 | US5594343 For determining a property of earth formations surrounding a borehole |
| 01/14/1997 | US5594338 Automatic tuning apparatus and method for substance detection using nuclear quadrupole resonance and nuclear magnetic resonance |
| 01/09/1997 | WO1997001110A1 Nmr logging of natural gas reservoirs |
| 01/09/1997 | WO1997001090A1 Method for measuring the water content of growing substrates |
| 01/08/1997 | EP0671013B1 Magnetic measurement station for naval vessels |
| 01/07/1997 | US5592438 Method and apparatus for communicating data in a wellbore and for detecting the influx of gas |
| 01/07/1997 | US5592092 Locating system |
| 01/07/1997 | US5592084 Method for imaging of movement of material |
| 01/07/1997 | US5592083 System and method for contraband detection using nuclear quadrupole resonance including a sheet coil and RF shielding via waveguide below cutoff |
| 01/03/1997 | WO1997000389A1 Excavator data acquisition and control system and process |
| 01/03/1997 | WO1997000148A1 Roller table control |
| 01/03/1997 | CA2222448A1 Excavator data acquisition and control system and process |
| 01/02/1997 | EP0751403A1 Combined sensor |
| 01/02/1997 | EP0750809A1 Capacitance-sensitive switch and switch array |
| 01/02/1997 | EP0426851B1 Apparatus for detecting particular substance |
| 01/02/1997 | DE19549384A1 Optical switch with optical transmission line |
| 01/01/1997 | CN1139210A Detecting method and apparatus and sensing element thereof |
| 01/01/1997 | CN1139201A Method and apparatus for guiding driverless vehicle |
| 12/31/1996 | US5589838 Short range radio locator system |
| 12/31/1996 | US5589825 Logging or measurement while tripping |
| 12/31/1996 | US5589775 Rotating magnet for distance and direction measurements from a first borehole to a second borehole |
| 12/27/1996 | WO1996042138A1 Electromagnetic sensor and method for simultaneously determining various parameters of a corresponding target |
| 12/27/1996 | EP0750206A2 Optical switch |
| 12/27/1996 | EP0749586A1 Device for finding concealed studs |
| 12/27/1996 | EP0614538A4 Nuclear magnetic resonance detection of geologic structures. |
| 12/25/1996 | CN1138887A Method of creating a borehole in an earth formation |
| 12/24/1996 | US5587659 Towable array for measuring the resistivity of a terrain utilizing a low power level |
| 12/24/1996 | CA2177744A1 Producible fluid volumes in porous media determined by pulsed field gradient nuclear magnetic resonance |
| 12/19/1996 | WO1996041208A1 Apparatus and method for on-line inspection of electrically conductive food products |
| 12/19/1996 | WO1996041134A2 Method and apparatus for sensing proximity or position of an object using near-field or magnetic effects |
| 12/18/1996 | EP0648342A4 Method and apparatus for calibrating an mwd electromagnetic logger. |
| 12/17/1996 | US5585790 Method and apparatus for determining alignment of borehole tools |
| 12/17/1996 | US5585727 Apparatus for measuring resistivity of an earth formation using delta-sigma digital signal generation and sigma-delta digital detection system |
| 12/17/1996 | US5585726 Electronic guidance system and method for locating a discrete in-ground boring device |
| 12/17/1996 | CA2129940C Cable-locating apparatus and method |
| 12/17/1996 | CA2074468C Game machine employing metal bodies as its media |
| 12/12/1996 | WO1996039640A1 Range gated strip proximity sensor |
| 12/12/1996 | WO1996039612A1 Light beam range finder |
| 12/12/1996 | WO1996039562A1 Working machine control system with detector for buried objects |
| 12/12/1996 | DE19622561A1 Hall-effect sensor e.g. for detecting speed of ferromagnetic pinion |
| 12/12/1996 | CA2224117A1 Range gated strip proximity sensor |
| 12/11/1996 | EP0747733A2 Detection arrangement for conductive metallic pieces |
| 12/11/1996 | EP0747662A1 Position and orientation measuring system having anti-distortion source configuration |
| 12/11/1996 | CN1137640A Multifunctional electromagnetic remote metering system |
| 12/11/1996 | CN1033541C System and method for data processing |
| 12/10/1996 | US5583437 Method of and apparatus for NQR testing selected nuclei with reduced dependence on a given environmental parameter |
| 12/10/1996 | CA2032862C Method and apparatus for making induction measurements through casing |
| 12/06/1996 | CA2176529A1 Position and orientation measuring system having anti-distortion source configuration |
| 12/04/1996 | EP0745038A1 Seat occupant detection system |
| 12/03/1996 | USRE35386 Method for drilling directional wells |
| 12/03/1996 | US5581256 Range gated strip proximity sensor |
| 12/03/1996 | US5581185 Torque-balanced gradient coils for magnetic resonance imaging |