| 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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| 01/28/1999 | WO1999004295A2 Transponder arrangement and method for the production thereof |
| 01/28/1999 | WO1999004294A1 Locating concealed conductors |
| 01/28/1999 | WO1999004287A1 Method and apparatus for acoustic detection of mines and other buried man-made objects |
| 01/28/1999 | DE19732026A1 Microwave camera, e.g. for underground object detection |
| 01/28/1999 | DE19726456A1 Search arrangement for finding objects |
| 01/27/1999 | EP0893707A2 Method and apparatus for locating utility conveyances in an enclosed area |
| 01/27/1999 | EP0892908A1 Mutual induction correction |
| 01/26/1999 | US5864214 Storage compartment sensor system for use with an automotive vehicle |
| 01/26/1999 | US5863445 Etched coil unibody digital detector |
| 01/26/1999 | CA2109827C Detection of explosives by nuclear quadrupole resonance |
| 01/21/1999 | DE19730166A1 Transponderanordnung und Verfahren zu deren Herstellung Transponder arrangement and methods for their preparation |
| 01/20/1999 | EP0892285A1 Method and arrangement for electromagnetic object detection |
| 01/20/1999 | EP0891563A1 Crossed-loop resonator structure for spectroscopy |
| 01/20/1999 | EP0778937B1 Debris monitoring |
| 01/19/1999 | US5862513 Systems and methods for forward modeling of well logging tool responses |
| 01/19/1999 | US5861751 Electrical geophysical methods and apparatus for determining the in-situ density of porous material |
| 01/19/1999 | US5861750 Geophysical methods and apparatus for determining the hydraulic conductivity of porous materials |
| 01/14/1999 | WO1999001785A1 Method and apparatus for signal bandpass sampling in measurement-while-drilling applications |
| 01/14/1999 | WO1999001781A1 Radar plant and measurement technique for determination of the orientation and the depth of buried objects |
| 01/13/1999 | EP0890117A1 Device and process for determining position |
| 01/13/1999 | EP0889794A1 Motor vehicle occupant sensing systems |
| 01/13/1999 | EP0778954B1 Proximity switch with magnetic field-sensitive sensor |
| 01/13/1999 | EP0665958B1 Method of determining formation resistivity utilizing combined measurements of inductive and galvanic logging instruments |
| 01/12/1999 | US5859533 Process for the production of a supply current of a solenoid for a measuring probe for electromagnetic tomography |
| 01/12/1999 | US5859532 Method of and measuring arrangement for metal detection with a coil device having several separately controllable regions |
| 01/07/1999 | WO1999000679A1 Detecting underground pipes |
| 01/05/1999 | US5856788 Method and apparatus for radiofrequency identification tags |
| 01/05/1999 | US5855721 Non-destructive method of determining the position and condition of reinforcing steel in concrete |
| 12/30/1998 | WO1998059221A1 Measurement of flow fractions, flow velocities, and flow rates of a multiphase fluid using nmr sensing |
| 12/30/1998 | WO1998059220A2 Measurement of flow fractions, flow velocities, and flow rates of a multiphase fluid using esr sensing |
| 12/30/1998 | EP0886794A2 System and method for performing inversion on lwd resistivity logs with enhanced resolution |
| 12/30/1998 | EP0886793A1 Pulse sequences and interpretation techniques for nmr measurements |
| 12/30/1998 | EP0886792A1 Determining a fluid fraction in an earth formation |
| 12/30/1998 | EP0886757A1 Location system with field actuation sequences |
| 12/30/1998 | CN1203691A Heat-treatment of glassy metal alloy for article surveillance system markers |
| 12/30/1998 | CN1203671A Composite material structure having reduced signal attenuation |
| 12/30/1998 | CN1203404A 防盗装置 Anti-theft device |
| 12/29/1998 | US5854991 Method for inversion processing of transverse electromagnetic induction well logging measurements |
| 12/29/1998 | US5854603 Ultra-wideband swept range gate radar system with variable transmitter delay |
| 12/29/1998 | US5854553 For determining the position of a conductive target |
| 12/23/1998 | WO1998058277A1 A sensor panel and a detection apparatus incorporating the same |
| 12/23/1998 | WO1998058276A1 Electrical polarisation distribution of a vessel |
| 12/23/1998 | EP0885432A1 Curvature-reduction annealing of amorphous metal alloy ribbon |
| 12/23/1998 | EP0885400A2 Well logging method and apparatus for nmr and resistivity measurements |
| 12/23/1998 | EP0766775B1 Logging or measurement while tripping |
| 12/22/1998 | US5852363 Methods and apparatus for measuring characteristics of a formation around a borehole using computed focusing |
| 12/22/1998 | CA2118055C Differential array resistivity logging apparatus and method |
| 12/22/1998 | CA2081790C Method and apparatus for investigating earth formations |
| 12/22/1998 | CA2044745C Electrostatic shielded probe |
| 12/17/1998 | WO1998056617A1 Evaluation device for an object recognition device, specially for monitoring the interior of a motor vehicle, object recognition device fitted with one such evaluation device and method for controlling such a device |
| 12/16/1998 | EP0884609A1 Metal detector tube |
| 12/16/1998 | EP0883818A1 Method and device for detecting an object in a region to be monitored |
| 12/16/1998 | EP0850162A4 System and method for controlling vehicle safety device |
| 12/16/1998 | EP0685078B1 Location of buried conductors |
| 12/16/1998 | CN1202250A Meter testing circuit |
| 12/15/1998 | US5850369 Method and apparatus for communicating data in a wellbore and for detecting the influx of gas |
| 12/15/1998 | US5850192 Apparatus for sensing vehicles |
| 12/10/1998 | WO1998055974A2 Method and apparatus for detecting a target material by pre-screening a sample for piezoelectric resonance |
| 12/08/1998 | US5845500 Magnetic telescope with enhanced noise suppression |
| 12/06/1998 | CA2207131A1 Ground penetrating radar |
| 12/03/1998 | WO1998054601A1 Identification of buried cables |
| 12/02/1998 | EP0881468A1 Bi-dimensional position sensor of magnetic type, particularly for motor vehicle applications |
| 12/02/1998 | EP0881333A1 Enhanced paint for microwave/millimeter wave radiometric detection applications & method of road marker detection |
| 12/02/1998 | EP0880762A1 Sensor for remote detection of objects |
| 12/02/1998 | EP0880679A2 Method and apparatus for sensing proximity or position of an object using near-field or magnetic effects |
| 12/01/1998 | US5844482 Tagging system using motion detector |
| 12/01/1998 | US5844415 Method for three-dimensional positions, orientation and mass distribution |
| 12/01/1998 | US5844405 Method and apparatus for locating utility conveyances in an enclosed area |
| 12/01/1998 | US5842986 Ferromagnetic foreign body screening method and apparatus |
| 11/26/1998 | WO1998053343A2 Tagging system using motion detector |
| 11/25/1998 | EP0880035A2 Magnetic metal sensor and method for detecting magnetic metal |
| 11/25/1998 | EP0879421A2 Process and device for determining a cable run in a cable carrier system of a technical installation and detector used therein |
| 11/24/1998 | US5841528 Anti counterfeit apparatus |
| 11/24/1998 | US5841346 Pistol detection system |
| 11/24/1998 | US5841281 Method for determining electrical conductivity of earth formations from electromagnetic induction voltage measurements |
| 11/24/1998 | US5841280 Apparatus and method for combined acoustic and seismoelectric logging measurements |
| 11/18/1998 | EP0878785A2 Universal security element and production method thereof |
| 11/18/1998 | EP0877961A1 Borehole logging system |
| 11/18/1998 | EP0806090B1 Label for marking and remote sensing of objects |
| 11/18/1998 | CN1199175A Pseudo-random three-frequency excitation method to distinguish mineral abnormality from carbon abnormality |
| 11/17/1998 | US5838235 Station, a passive portable object and apparatus for the remote exchange of information between the passive portable object and the station |
| 11/17/1998 | US5838233 Object orientation sensor device |
| 11/17/1998 | US5838157 Device for measuring electrical field gradient componets of the soil |
| 11/17/1998 | US5838155 Underground formation producibility and water cut from nuclear magnetic resonance data using an isolated pore |
| 11/12/1998 | WO1998050799A1 Method for discovering the location of a living object and microwave location device for realising the same |
| 11/11/1998 | EP0876621A1 Underground pipe locating system |
| 11/11/1998 | EP0876580A1 A method and a device for inductive measurement of measures and positions of objects of electrically conductive material |
| 11/11/1998 | CN1198827A Curvature-reduction annealing of amorphous metal alloy ribbon |
| 11/10/1998 | US5835054 Ultra wideband ground penetrating radar imaging of heterogeneous solids |
| 11/10/1998 | US5835053 Roadway ground penetrating radar system |
| 11/10/1998 | US5834936 Nuclear magnetic resonance apparatus and method |
| 11/10/1998 | US5833608 Magnetic determination of position and orientation |
| 11/05/1998 | WO1998049552A1 Static electrification assisted dielectrokinesis detection of plastics and other materials |
| 11/05/1998 | DE19817008A1 Sensor determining vehicle or magnetic permeable mass |
| 11/04/1998 | EP0875774A2 Detection of passing magnetic articles while periodically adapting detection threshold |
| 11/04/1998 | EP0875733A2 Detection of passing magnetic articles using a peak-on-peak percentage threshold detector |
| 11/04/1998 | CN1198231A Method and device for measuring magnetic properties of sheet materials |
| 11/04/1998 | CN1198217A Method for automatically determining stratification beds in a site |
| 11/03/1998 | US5831873 Magnetic dipole target classifier and method |
| 11/03/1998 | US5831433 Well logging method and apparatus for NMR and resistivity measurements |