| Patents for G01V 3 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation (25,929) |
|---|
| 05/11/1999 | US5903150 Antenna system for NMR and MRI apparatus |
| 05/11/1999 | US5902238 Medical tube and apparatus for locating the same in the body of a patient |
| 05/11/1999 | US5901534 Metal detector for detecting metal in harvested product flow |
| 05/11/1999 | CA2096261C Split array dipole moment detection and localization |
| 05/06/1999 | WO1998059220A3 Measurement of flow fractions, flow velocities, and flow rates of a multiphase fluid using esr sensing |
| 05/06/1999 | EP0913708A2 Electromagnetic signal pickup apparatus and method for use of same |
| 05/06/1999 | EP0779992A4 Range-gated field disturbance sensor with range-sensitivity compensation |
| 05/06/1999 | DE19830584A1 Pipe conveyor incorporates metal housing around non-metallic pipe |
| 05/05/1999 | CN2317486Y Spring chip for detector |
| 05/05/1999 | CN1215789A Well system |
| 05/04/1999 | US5900833 Imaging radar suitable for material penetration |
| 05/04/1999 | US5900816 Anti-shoplifting security system utilizing a modulated transmitter signal |
| 05/04/1999 | US5900733 Well logging method and apparatus for determining downhole Borehole fluid resistivity, borehole diameter, and borehole corrected formation resistivity |
| 05/04/1999 | CA2140857C Well logging method and apparatus involving electromagnetic wave propagation providing variable depth of investigation by combining phase angle and amplitude attenuation |
| 04/29/1999 | WO1999021018A1 Compact sensing apparatus having reduced cross section and methods of mounting same |
| 04/29/1999 | DE19747130A1 Information exchange apparatus for underground data cable |
| 04/28/1999 | EP0911650A2 Apparatus and method for the detection of materials |
| 04/28/1999 | EP0911483A2 Well system including composite pipes and a downhole propulsion system |
| 04/27/1999 | CA2156446C Position indicating magnetic metal detector |
| 04/22/1999 | WO1999019748A1 Prodder with force feedback |
| 04/21/1999 | EP0909962A2 Pulse signal generation method and apparatus |
| 04/21/1999 | EP0909398A1 Electrical logging of a laminated earth formation |
| 04/21/1999 | EP0909397A1 Ultrasound-hall effect imaging system and method |
| 04/20/1999 | US5896102 Swept range gate radar system for detection of nearby objects |
| 04/20/1999 | US5896031 Quad coil vibration cancelling metal detector |
| 04/20/1999 | US5895235 Process for manufacturing transponders of small dimensions |
| 04/15/1999 | WO1999018454A1 Resistivity log correction method |
| 04/14/1999 | EP0907957A1 Metallic glass alloys for mechanically resonant marker surveillance systems |
| 04/14/1999 | CA2218198A1 Prodder with force feedback |
| 04/13/1999 | CA2142546C Apparatus and method for sounding the earth |
| 04/08/1999 | WO1999009436B1 Improvements relating to surgical devices and their location |
| 04/08/1999 | WO1998030921A3 Magnetometer and dielectrometer detection of subsurface objects |
| 04/08/1999 | DE19841325A1 Nondestructive method to determine position-course of metal body in non metallic magnetic material |
| 04/07/1999 | EP0906583A1 Magnetic reading devices |
| 04/07/1999 | EP0783709A4 Swept range gate radar system for detection of nearby objects |
| 04/07/1999 | CN1213433A Method for determining fluid fraction in an earth formation |
| 04/06/1999 | US5892460 Logging while drilling tool with azimuthal sensistivity |
| 04/06/1999 | US5892362 Method and apparatus for spacially continuous two-dimensional imaging of subsurface conditions through surface induction techniques |
| 04/06/1999 | US5892361 Use of raw amplitude and phase in propagation resistivity measurements to measure borehole environmental parameters |
| 04/06/1999 | US5891270 Heat-treatment of glassy metal alloy for article surveillance system markers |
| 04/01/1999 | WO1999015916A1 A method of probing drill holes electromagnetically, and a transmitter arrangement and a receiver arrangement for carrying out the method |
| 04/01/1999 | WO1999004287B1 Method and apparatus for acoustic detection of mines and other buried man-made objects |
| 04/01/1999 | WO1998053343A9 Tagging system using motion detector |
| 03/31/1999 | EP0905529A2 Arrangement of detectors |
| 03/31/1999 | EP0839324B1 System and method for measuring the total electron content of the ionosphere |
| 03/31/1999 | EP0830522A4 Excavator data acquisition and control system and process |
| 03/30/1999 | US5889729 Well logging data interpretation systems and methods |
| 03/30/1999 | CA2141553C Dual sensitivity stud sensor |
| 03/24/1999 | EP0903856A2 Pulse signal generation method and apparatus |
| 03/24/1999 | EP0903591A2 Method and apparatus for measuring resistivity of an earth formation |
| 03/24/1999 | EP0902901A2 Locatable locating tape for finding in particular non-metallic cables and pipelines buried in the ground |
| 03/24/1999 | CN1211844A Battery leasing system |
| 03/23/1999 | US5886664 Method and apparatus for detecting mines using radiometry |
| 03/23/1999 | US5886526 Apparatus and method for determining properties of anisotropic earth formations |
| 03/23/1999 | US5886255 Method and apparatus for monitoring mineral production |
| 03/19/1999 | CA2247636A1 Method and apparatus for measuring resistivity of an earth formation |
| 03/18/1999 | WO1999013358A1 Method for locating a moving object by gradiometry measurements |
| 03/17/1999 | EP0902521A2 Battery rental system |
| 03/17/1999 | EP0902302A2 Electrical well logging fluid and method of using same |
| 03/17/1999 | EP0902076A2 Electrical well logging fluid and method of using same |
| 03/17/1999 | EP0901642A1 Pulse homodyne field disturbance sensor |
| 03/17/1999 | CN2311005Y Underground (underwater) wounded person finding apparatus |
| 03/16/1999 | US5884295 System for neural network interpretation of aeromagnetic data |
| 03/16/1999 | US5884227 Method for interpreting induction logs in high resistivity contrast earth formations |
| 03/16/1999 | US5883516 Apparatus and method for electric field telemetry employing component upper and lower housings in a well pipestring |
| 03/16/1999 | US5883515 Method of determining formation resistivity utilizing combined measurements of inductive and galvanic logging instruments |
| 03/16/1999 | CA2137846C System for collecting oceanographic data from a moving vessel |
| 03/16/1999 | CA2084656C Sub-audio magnetics instrument |
| 03/11/1999 | WO1999012056A1 Apparatus for reducing rotation of an article |
| 03/11/1999 | WO1998055974A3 Method and apparatus for detecting a target material by pre-screening a sample for piezoelectric resonance |
| 03/10/1999 | EP0722290A4 Magnetic determination of position and orientation |
| 03/10/1999 | CN1210270A Method and apparatus for detecting presence of magnetic substances in non-magnetic products |
| 03/09/1999 | US5881310 Method for executing an instruction where the memory locations for data, operation to be performed and storing of the result are indicated by pointers |
| 03/09/1999 | US5878783 Pipeline vehicle |
| 03/04/1999 | WO1999010853A1 Metering circuit |
| 03/04/1999 | WO1998053343A3 Tagging system using motion detector |
| 03/04/1999 | CA2300919A1 Metering circuit |
| 03/03/1999 | EP0899702A2 Magnetostrictive resonator, road in which the resonator is buried and method of buring the resonator |
| 03/03/1999 | EP0899589A2 Method and apparatus for detecting the presence of magnetic substances in non-magnetic products |
| 03/03/1999 | EP0898719A1 Locator of electrically conductive objects |
| 03/03/1999 | CN1209878A Borehole logging system |
| 03/02/1999 | US5877995 Geophysical prospecting |
| 03/02/1999 | US5877705 Method and apparatus for analyzing traffic and a sensor therefor |
| 03/02/1999 | US5877626 Temperature resistant magnetoresistance sensing device |
| 02/25/1999 | WO1999009436A1 Improvements relating to surgical devices and their location |
| 02/24/1999 | EP0898180A2 Package for a magnetic field sensing device |
| 02/24/1999 | CN1209184A Trencbless underground boring system with boring location |
| 02/23/1999 | US5873717 System activating a dental handpiece after removal from a holder |
| 02/18/1999 | WO1999008126A1 Magnetic field generating assembly for use in an nmr apparatus |
| 02/18/1999 | DE19731560A1 Localisation and identification method of buried mine, bomb, etc. |
| 02/17/1999 | EP0896678A1 Displacement-current sensor and method for determining three-dimensional position, orientation and mass distribution |
| 02/11/1999 | WO1999006978A1 Security element for the electronic surveillance of articles |
| 02/09/1999 | US5869968 Apparatus for use in a wellbore |
| 02/09/1999 | US5869967 Device for the detection of objects, especially explosive objects, lying in the earth |
| 02/04/1999 | WO1999005545A1 Enhanced detection method |
| 02/03/1999 | EP0895208A2 Transverse magnetic field annealed amorphous magnetomechanical elements for use in electronic article surveillance system and method of making same |
| 02/03/1999 | EP0895206A1 Security tag for electronic protection of articles |
| 02/03/1999 | EP0793795B1 Mine-clearer |
| 02/03/1999 | EP0614538B1 Nuclear magnetic resonance detection of geologic structures |
| 02/02/1999 | US5867806 System and method for performing inversion on LWD resistivity logs with enhanced resolution |