Patents
Patents for G01V 3 - Electric or magnetic prospecting or detecting; Measuring magnetic field characteristics of the earth, e.g. declination or deviation (25,929)
09/2004
09/21/2004US6793025 Double emulsion based drilling fluids
09/21/2004CA2215728C Determining a parameter of a component in a composition
09/16/2004US20040178924 Non-contact proximity sensor
09/16/2004US20040178794 Method for metal object identification using a three- dimensional steerable magnetic field antenna
09/16/2004US20040178789 Hands-free metal detector
09/15/2004CN2641665Y Multi-function electromagnetic propsecting instrument
09/14/2004US6791331 Method and apparatus for measuring characteristics of geological formations
09/14/2004US6791330 Well logging tool and method for determining resistivity by using phase difference and/or attenuation measurements
09/14/2004US6791329 Portable metal detection and classification system
09/14/2004US6791324 Probehead and a sample substance for an electron spin resonance dosimeter
09/14/2004CA2358665C Method of determining wellbore diameter by processing of electromagnetic resistivity measurements
09/09/2004US20040176910 Electromagnetic method and apparatus for determining the nature of subterranean reservoirs using refracted electromagnetic waves
09/09/2004US20040174168 Locating arrangement and method using boring tool and cable locating signals
09/09/2004US20040174166 Nuclear magnetic resonance tool with conductive and non-conductive magnet assembly
09/08/2004EP1166154B1 Induction logging
09/08/2004EP0898719B1 Locator of electrically conductive objects
09/08/2004CN1527950A A method and apparatus for identifying buried objects using ground penetrating radar
09/08/2004CN1165761C Gun detecting system
09/07/2004US6788263 Replaceable antennas for subsurface monitoring apparatus
09/07/2004US6788212 Conductor detecting device
09/07/2004US6788066 Method and apparatus for measuring resistivity and dielectric in a well core in a measurement while drilling tool
09/07/2004US6788065 Slotted tubulars for subsurface monitoring in directed orientations
09/07/2004CA2245720C Well logging method and apparatus for nmr and resistivity measurements
09/07/2004CA2205971C Determining electrical conductivity of an earth layer
09/02/2004WO2004075369A2 Electrical power supply arrangement for a downhole measurement assembly
09/02/2004WO2004074870A1 Method and apparatus for predicting seismic events
09/02/2004WO2004074772A1 Actuator and object-detecting device using the same
09/02/2004WO2004046507A3 Multi-frequency focusing for mwd resistivity tools
09/02/2004US20040169512 Synthetic images for a magnetic resonance imaging scanner using linear combination of source images to generate contrast and spatial navigation
09/02/2004US20040169511 [Interpretation Methods for NMR Diffusion-T2 maps]
09/02/2004US20040169509 Screening method and apparatus
09/02/2004US20040168358 Underground utility detection system
09/02/2004CA2494170A1 Electrical power supply arrangement for a downhole measurement assembly
09/01/2004EP1451752A1 Soil and topography surveying
09/01/2004EP1451612A1 Method for determining anisotropic resistivity and dip angle in an earth formation
09/01/2004EP1451611A1 Q-factor switching method and apparatus for detecting nuclear quadrupole and nuclear magnetic resonance signals
09/01/2004EP1451595A2 Electrodynamic sensors and applications thereof
09/01/2004CN1525193A Interpretation methods for NMR diffusion-t2 maps
08/2004
08/31/2004US6784666 Flexible cushion probe for detecting a dielectric medium defined by a dielectric boundary surface
08/31/2004US6782759 Anti-entrapment system
08/31/2004CA2287141C Preconditioning spins near a nuclear magnetic resonance region
08/26/2004WO2004072684A1 Measuring equipment and method for mapping the geology in an underground formation
08/26/2004WO2002088775A9 Estimation of transversal motion of the nmr tool during logging
08/26/2004US20040164740 Bore location system
08/26/2004US20040164735 Method and apparatus for NMR measurement of magnetic materials
08/26/2004US20040164734 Magnetic sensor system and method for installing magnetic sensors
08/26/2004US20040163850 Boring tool tracking/guiding system and method with unconstrained target location geometry
08/26/2004CA2785717A1 Measuring equipment and method for mapping the geology in an underground formation
08/25/2004CN1163764C Electrical active-source frequency domain exploration method
08/24/2004US6781387 Inspection method using penetrant and dielectrometer
08/24/2004US6781380 Active magnetic anomaly sensing array and processing system
08/24/2004US6781371 High vertical resolution antennas for NMR logging
08/24/2004CA2253603C Displacement-current sensor and method for determining three-dimensional position, orientation and mass distribution
08/24/2004CA2239563C Tone transmission over cable sheaths for cable location
08/19/2004WO2004070455A2 Optimizing a liquid crystal display (lcd) manufacturing process
08/19/2004WO2004070423A2 Method and apparatus for detecting diffusion sensitive phases with estimation of residual error in nmr logs
08/19/2004WO2004070422A2 Methods of processing magnetotelluric signals
08/19/2004WO2004049010B1 Method of determining the vertical and horizontal resistivity and the relative dip in anisotropic earth formations
08/19/2004WO2004038453A3 Millimetre-wave detection device for discriminating between different materials
08/19/2004WO2003067018A3 Well system
08/19/2004US20040160328 Non-contact liquid sensing apparatus, system, and method
08/19/2004US20040160223 Passive ranging techniques in borehole surveying
08/18/2004EP1447685A2 Flux control system for metal detectors
08/18/2004EP1446267A1 HAND−HELD TOOL WITH A REMOVABLE OBJECT SENSOR
08/18/2004CN2634494Y Digital detection integrated machine
08/18/2004CN1521031A Capacitance sensor and detector using same for detecting object being caught by door
08/17/2004US6778127 Drillstring radar
08/17/2004US6777940 Apparatus and method for resistivity well logging
08/17/2004US6777923 System and method for detecting a concealed current carrying conductor
08/12/2004WO2004068172A1 Systems and methods for resistivity measurement
08/12/2004US20040158405 System of processing and presenting drill hole data
08/12/2004US20040158403 Method for processing georefrenced electrical resistivity measurements for the real-time electrical mapping of soil
08/12/2004US20040158374 Operation equipment for vehicle
08/12/2004US20040158146 Guided radiation therapy system
08/12/2004US20040155810 Method and apparatus for identifying buried objects using ground penetrating radar
08/12/2004US20040155776 Device for locating trapped victims and a method of operating such a device
08/12/2004US20040155660 System and method for locating a fracture in an earth formation
08/12/2004US20040155651 Flux control system for metal detectors
08/12/2004US20040154831 Systems for deep resistivity while drilling for proactive geosteering
08/11/2004EP1444536A1 Airborne geophysical measurements
08/11/2004EP1444535A1 A borehole compensation system and method for a resistivity logging tool
08/11/2004CN1520522A Method for merging position and measurement information and obtaining high quality images opposited to earth coordinate positioning through filtering
08/11/2004CN1520329A Inductive sensory appts.
08/10/2004US6774628 Nuclear magnetic resonance imaging using phase encoding with non-linear gradient fields
08/05/2004WO2004053524A3 Method of steering capacitor fields for use in capacitive sensing security systems
08/05/2004WO2004044594A3 Moving belt sensor
08/05/2004WO2003077725A3 Mri protector
08/05/2004US20040153246 Methods of processing magnetotelluric signals
08/05/2004US20040150412 High-frequency oscillation type proximity sensor
08/05/2004US20040150408 System and method for improving TFT-array manufacturing yields
08/05/2004US20040150404 Electromagnetic methods and apparatus for determining the content of subterranean reservoirs
08/05/2004US20040150403 Surface to underwater viewing device attachment for metal detector
08/05/2004US20040149434 Monitoring a reservoir in casing drilling operations using a modified tubular
08/05/2004US20040149004 Downhole calibration system for directional sensors
08/04/2004EP1442312A1 Method and apparatus for subterranean formation flow imaging
08/04/2004EP1442286A2 System and method for scanning carriers for objects
08/04/2004CN1517721A Multi-measuring NMR analysing based on maximum entropy
08/03/2004US6772091 Determining the depth of reinforcing bars in a concrete structure using electromagnetic signals
08/03/2004US6771206 Method for obtaining underground imagery using a ground-penetrating radar
08/03/2004CA2424248C A multi-frequency array induction tool