| Patents for G01V 3 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation (25,929) |
|---|
| 07/19/1995 | EP0663076A1 Circuit tracer |
| 07/18/1995 | US5434507 Method and apparatus for electromagnetic logging with two dimensional antenna array |
| 07/18/1995 | US5434500 Magnetic field generator and detector position indicator |
| 07/13/1995 | WO1995018982A1 Sensor with magnetoresistive elements |
| 07/11/1995 | US5432446 Nuclear magnetic resonance apparatus |
| 07/11/1995 | US5432444 Inspection device having coaxial induction and exciting coils forming a unitary coil unit |
| 07/04/1995 | US5430380 Sensor for locating objects in the sea having a conductive shell to inject electric current into the sea and a sensor coil in the shell |
| 07/04/1995 | US5430379 Conductor locator adapter for electronic markers |
| 07/04/1995 | US5429132 Probe system |
| 06/28/1995 | EP0659270A1 Process and device for inspecting and/or servicing and repairing subsidiary canals branching off from a main drain. |
| 06/28/1995 | EP0659269A1 Airborne multiband imaging spectrometer |
| 06/27/1995 | US5428293 Logging while drilling apparatus with multiple depth of resistivity investigation |
| 06/27/1995 | US5428291 Determination of fluid transport properties in porous media by nuclear magnetic resonance measurements of fluid flow |
| 06/22/1995 | WO1995016926A1 Method of and apparatus for detection, and method of configuring such apparatus |
| 06/22/1995 | DE4342826A1 Metal part detector e.g. for recycling plant |
| 06/21/1995 | CN1029032C Apparatus for detecting magnetizable material in building structure |
| 06/20/1995 | US5426429 Supervision and control of airport lighting and ground movements |
| 06/20/1995 | US5426368 Logging method and apparatus for investigating geometrical characteristics of a borehole and for investigating formation resistivity |
| 06/20/1995 | US5426367 Logging of cased well by induction logging to plot an induction log of the well |
| 06/20/1995 | US5426363 Object detecting device |
| 06/20/1995 | US5425382 Apparatus and method for locating a medical tube in the body of a patient |
| 06/20/1995 | US5425367 Catheter depth, position and orientation location system |
| 06/15/1995 | WO1995016212A1 Method and apparatus for hydrocarbon detection via eddy currents induced by large amplitude, long period, square waves |
| 06/14/1995 | EP0657750A2 Method of variable radial depth induction logging |
| 06/14/1995 | EP0657734A1 Microdevice for measuring the electromagnetic characteristics of a medium, and utilisation of that microdevice |
| 06/14/1995 | EP0657032A1 Dual sensitivity stud sensor |
| 06/14/1995 | CN2200826Y Directional antenna turning device of underground metal lead-out detector |
| 06/13/1995 | US5425073 Analyzer circuit an inductive position sensor |
| 06/13/1995 | US5425001 Navigation system for an underwater vehicle |
| 06/13/1995 | CA2033609C Long feature vertical or horizontal electrical conductor detection methodology using phase coherent electromagnetic instrumentation |
| 06/08/1995 | WO1995015507A1 Method of detecting an electrically conducting object, and a device for carrying out the method |
| 06/07/1995 | EP0656547A1 Method and appparatus for surveying and monitoring a hydrocarbon reservoir |
| 06/01/1995 | WO1995014944A1 Detection of counterfeit articles |
| 06/01/1995 | WO1995014943A1 Resistivity imaging |
| 06/01/1995 | WO1995014938A1 Location apparatus and method |
| 06/01/1995 | WO1995014920A1 Process for detecting totally or partially hidden non-homogeneities by microwave radiation |
| 06/01/1995 | DE4340645A1 Evaluating radar signals |
| 06/01/1995 | DE4340176A1 Rod-shaped magnetic field sensor |
| 06/01/1995 | DE4340130A1 Locating structures underground |
| 06/01/1995 | CA2177368A1 Detection of counterfeit articles |
| 05/30/1995 | US5420589 System for evaluating the inner medium characteristics of non-metallic materials |
| 05/30/1995 | US5420507 Method and apparatus for sensing a target characteristic by measuring both impedance and resonant frequency of a tank circuit |
| 05/24/1995 | EP0654686A2 Method of correcting for axial error components in magnetometer readings during wellbore survey operations |
| 05/24/1995 | EP0654685A2 Arrangement and method for detecting metal objects |
| 05/23/1995 | US5418458 Apparatus and method for authentication of documents printed with magnetic ink |
| 05/23/1995 | US5418447 Process and apparatus for electromagnetically locating and identifying electrical lines using a high frequency carrier wave |
| 05/23/1995 | US5417316 Capacitive verification device for a security thread embedded within currency paper |
| 05/23/1995 | US5417112 Apparatus for indicating the passage of a pig moving within an underground pipeline |
| 05/23/1995 | US5417104 Determination of permeability of porous media by streaming potential and electro-osmotic coefficients |
| 05/18/1995 | DE4338752A1 Detection means for ferromagnetic particles from within pipes |
| 05/17/1995 | EP0653647A2 Method of correcting for axial and transverse error components in magnometer readings during wellbore survey operations |
| 05/10/1995 | EP0652531A1 Low level RF Threshold detector |
| 05/10/1995 | EP0652448A2 Method for image enhanced position detection and cartography of subterranean objects |
| 05/09/1995 | US5414412 Frequency dividing transponder, including amorphous magnetic alloy and tripole strip of magnetic material |
| 05/09/1995 | US5414411 Pulse induction metal detector |
| 05/09/1995 | US5414410 Method and system for detecting a marker |
| 05/09/1995 | US5414355 Magnet carrier disposed within an outer housing |
| 05/04/1995 | WO1995012185A1 Capacitive detector device and alarm system |
| 05/04/1995 | DE4336561A1 Metal detector |
| 05/03/1995 | EP0651134A1 Device for monitoring collapse of natural ground in underground excavator |
| 05/03/1995 | EP0493598B1 Apparatus for underground radar tomography |
| 05/02/1995 | US5412320 Nuclear magnetic resonance determination of petrophysical properties of geologic structures |
| 04/27/1995 | WO1995011462A1 Metal detectors and methods for making the same |
| 04/27/1995 | DE4335681A1 Arrangement for a transmitting and/or receiving antenna |
| 04/25/1995 | US5410252 Magnetic survey technique for determining subsurface environmental contamination |
| 04/19/1995 | EP0649035A1 Borehole measurement of NMR characteristics of earth formations and interpretations thereof |
| 04/19/1995 | EP0648342A1 Method and apparatus for calibrating an mwd electromagnetic logger |
| 04/18/1995 | US5408243 Method for producing a flat flexible antenna |
| 04/18/1995 | US5408183 Method of dating different levels in a terrestrial geological bed using remanent and induced magnetization measurements |
| 04/18/1995 | US5408182 Facility and method for the detection and monitoring of plumes below a waste containment site with radiowave tomography scattering methods |
| 04/18/1995 | US5408179 Method and apparatus for analying traffic and a sensor therefor |
| 04/13/1995 | WO1995010055A1 Integral variable reluctance speed sensor |
| 04/13/1995 | WO1995009562A1 Magnetic determination of position and orientation |
| 04/13/1995 | DE4435678A1 Magnetic field sensor |
| 04/12/1995 | EP0647859A1 A combination well logging device |
| 04/11/1995 | US5406259 High uniformity metal detector equipped with auxiliary receiver coils sensitive to metal masses passing close to them |
| 04/11/1995 | US5406206 Method of evaluating a geological formation using a logging tool including slot antenna having two nonparallel elements |
| 04/05/1995 | EP0646810A2 Measurement of dielectric properties of fluids in a well |
| 04/05/1995 | EP0646806A1 Open magnetic structure |
| 04/05/1995 | EP0646250A1 Nuclear magnetic resonance determination of petrophysical properties of geologic structures |
| 04/02/1995 | CA2116513A1 Logging system for measuring dielectric properties of fluids in a cased well |
| 03/29/1995 | EP0645646A1 Cable-locating apparatus and method |
| 03/28/1995 | US5402069 Spontaneous potential measurement apparatus connected between metallic housings of a wellbore apparatus for measuring the spontaneous potential of an earth formation |
| 03/28/1995 | US5402068 For use in a wellbore |
| 03/28/1995 | US5401584 Surveillance marker and method of making same |
| 03/23/1995 | WO1995008130A1 Apparatus and method for locating a medical tube in the body of a patient |
| 03/23/1995 | WO1995008129A1 Electrode device for protecting and supporting an electrode used for measuring the resistivity of a body of soil |
| 03/23/1995 | CA2171717A1 Apparatus and method for locating a medical tube in the body of a patient |
| 03/23/1995 | CA2167727A1 Electrode device for protecting and supporting an electrode used for measuring the resistivity of a body of soil |
| 03/21/1995 | US5400030 Method of exploring near-surface layers of earth materials |
| 03/21/1995 | US5399971 Method and apparatus for evaluating formation resistivity using focused annular and azimuthal electrodes |
| 03/21/1995 | US5399853 Optical sensor arrangement using dual mode devices |
| 03/16/1995 | DE4338280C1 Method for image-aided detection of the position and mapping of underground (subterranean) objects |
| 03/15/1995 | EP0643376A1 Surveillance marker and method of making same |
| 03/15/1995 | EP0536288B1 Metal detector |
| 03/14/1995 | US5397986 Metal detector system having multiple, adjustable transmitter and receiver antennas |
| 03/14/1995 | US5397985 Method for the imaging of casing morphology by twice integrating magnetic flux density signals |
| 03/11/1995 | CA2131127A1 Surveillance marker and method of making same |
| 03/08/1995 | CN2191437Y Computerized autocontrol frequency selective detector |
| 03/07/1995 | US5396232 Transmitter device with two insulating couplings for use in a borehole |