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)
09/2009
09/24/2009US20090240435 Method and apparatus for eliminating drill effect in pulse induction measurements
09/24/2009US20090237267 Downhole telemetry through multi-conductor wireline
09/24/2009US20090237084 Electromagnetic and Magnetostatic Shield to Perform Measurements Ahead of the Drill Bit
09/24/2009US20090237083 Method for imaging subterranean formations
09/24/2009US20090237082 Methods of logging geological formations
09/24/2009CA2711126A1 An efficient method for inversion of geophysical data
09/23/2009EP2103960A2 Method and apparatus for determining position in a pipe
09/23/2009EP2102688A2 A process and device for measurement of spectral induced polarization response using pseudo random binary sequence (prbs) current source
09/23/2009CN101542318A An antenna for an electromagnetic probe for investigating geological formations and its applications
09/23/2009CN101542317A Localization system for an earthmoving machine
09/23/2009CN101539637A Indoor wall-buried wire non-destructive detection instrument
09/23/2009CN101539636A Power-frequency feeble-current electromagnetic signal sensor of non-current transformer type
09/23/2009CN101539635A Embedded non-contact detection system
09/23/2009CN100543408C Actuator and object-detecting device using the same
09/22/2009US7592814 Method for monitoring an area containing a subterranean resistive or conductive body, and for obtaining a volume of hydrocarbon therefrom
09/22/2009US7592813 Wireless RF coil power supply
09/22/2009US7592812 Magnetic resonance imaging apparatus and static magnetic field correction method
09/22/2009US7592811 High-frequency resonant cavity for nuclear magnetic resonance, using radio-frequency transmission lines
09/22/2009US7592810 MRI methods for combining separate species and quantifying a species
09/22/2009US7592809 Hybrid k-t method of dynamic imaging with improved spatiotemporal resolution
09/22/2009US7592808 System and method for reducing MR scan time using partial fourier acquisition and compressed sensing
09/22/2009US7592807 Maximum likelihood estimator in the presence of non-identically distributed noise for decomposition of chemical species in MRI
09/22/2009US7592806 Double half RF pulses for reduced sensitivity to eddy currents in UTE imaging
09/20/2009CA2658706A1 Improvements in or relating to methods of logging geological formations
09/20/2009CA2658153A1 Improvements in or relating to methods of logging geological formations
09/17/2009WO2009114250A2 Downhole spread spectrum induction instruments
09/17/2009WO2009112965A1 Method and device for calibrating a magnetic induction tomography system
09/17/2009WO2009112214A1 Receiving device for determining foreign parts
09/17/2009US20090234219 Particle Radiation Therapy Equipment
09/17/2009US20090230970 Optimisation of Mtem Parameters
09/17/2009US20090230969 Downhole Acoustic Receiver with Canceling Element
09/17/2009US20090230968 Antenna coupling component measurement tool having rotating antenna configuration
09/17/2009US20090230967 Downhole Spread Spectrum Induction Instruments
09/17/2009US20090230962 Method and apparatus for in-situ measurement of soot by electron spin resonance ( esr) spectrometry
09/17/2009US20090230956 Switchable manual/motor-driven nmr tuning systems and methods
09/17/2009US20090229820 Downhole Sensor Interface
09/16/2009EP1194907B1 Thickness measurement system and method for vehicle occupant detection
09/16/2009CN101535843A Metal object detecting apparatus
09/16/2009CN101533104A Apparatus and methods for an inductive proximity sensor
09/16/2009CN101532839A Non-excavation measurement while drilling system based on inertia technology
09/16/2009CN100540843C In situ thermal processing of a hydrocarbon containing formation using a natural distributed combustor
09/15/2009US7589531 Gradient magnetic field coil unit, gantry for MRI apparatus, and MRI apparatus
09/15/2009US7589530 Coil device and nuclear magnetic resonance imaging apparatus using the same
09/15/2009US7589529 Method of and apparatus for in-situ measurement of degradation of automotive fluids and the like by micro-electron spin resonance (ESR) spectrometry
09/15/2009US7588083 Method and system for scanning tubing
09/15/2009CA2416513C Method of locating underground utility lines and an underground utility line
09/15/2009CA2370835C Minimizing paper waste carousel-style dispenser apparatus, sensor, method and system with proximity sensor
09/15/2009CA2321953C Inductive sensor arrangement and method for detecting ferrous objects
09/11/2009WO2009111518A1 Ratiometric ac wire tracer
09/11/2009WO2009110818A1 Bottom station (variants)
09/11/2009WO2009088541A3 Multidimensional spectrometer
09/11/2009WO2009048190A3 Electrical specific resistivity probing robot
09/11/2009CA2714109A1 Ratiometric ac wire tracer
09/10/2009US20090224936 Methods and apparatus for single fiber optical telemetry
09/10/2009US20090224766 Correction of sensor non-equipotentiality in a resistivity imaging device
09/10/2009US20090224765 Bottom system for geophysical survey (variants)
09/10/2009US20090224764 Electromagnetic Wave Resistivity Tool Having a Tilted Antenna for Determining the Horizontal and Vertical Resistivities and Relative Dip Angle in Anisotropic Earth Formations
09/10/2009US20090224756 Magnetic resonance imaging apparatus and magnetic resonance imaging method
09/10/2009DE202008006079U1 Magnetisch vorgespannter Hall-Sensor Magnetically biased Hall sensor
09/09/2009EP2098890A2 A detector for calculating the depth of a buried conductor
09/09/2009EP2098889A2 A detector for calculating a depth of a buried conductor
09/09/2009EP2098888A2 A detector for calculating the distortion of an electromagnetic field produced by a buried current carrying conductor
09/09/2009CN101529276A A telemetry apparatus and method for monitoring a borehole
09/09/2009CN101526629A Geological prediction system for constructing tunnel passing through coal measure strata
09/09/2009CN101526628A A detector for calculating the distortion of an electromagnetic field produced by a buried current carrying conductor
09/09/2009CN101526627A Differential magnetic detector for monitoring cheating in examination room
09/09/2009CN101526626A A detector for detecting a current carrying conductor and a method of validating operation of the detector
09/09/2009CN101526625A Addressable intelligent electrode circuit
09/09/2009CN101526334A A detector for calculating a depth of a buried conductor
09/09/2009CN100538401C Induction measurements with reduced borehole effects
09/09/2009CN100538005C Equipment and method for defining drilling mode and using optimized formation to make assess measurement
09/08/2009US7587232 Magnetic resonance imaging apparatus, magnetic resonance data processing apparatus, magnetic resonance data processing program and magnetic resonance imaging apparatus control method
09/08/2009US7586310 While-drilling apparatus for measuring streaming potentials and determining earth formation characteristics and other useful information
09/08/2009US7586309 Apparatus and method for guiding energy in a subsurface electromagnetic measuring system
09/08/2009US7586308 Phase shifted locating signal as compensation for a coupling configuration phase shift in discriminating a false locating signal
09/08/2009US7586307 Locating arrangement and method using boring tool and cable locating signals
09/08/2009US7586306 Simultaneously cycled NMR spectroscopy
09/08/2009US7586305 Method for determining the absolute number of electron spins in a sample of extended size
09/08/2009US7586303 Inductive proximity sensor
09/08/2009CA2506170C Multi-frequency focusing for mwd resistivity tools
09/08/2009CA2435464C Distal targeting of locking screws in intramedullary nails
09/08/2009CA2375272C A method and apparatus for determining the resistivity of a formation surrounding a cased well
09/03/2009WO2009108881A2 System and method to locate, monitor and quantify friction between a drillstring and a wellbore
09/03/2009WO2009108876A2 Acoustic modified nmr (amnmr)
09/03/2009WO2009108596A2 Method of determining a transient electromagnetic response of a formation
09/03/2009WO2009105873A1 Airborne electromagnetic transmitter coil system
09/03/2009US20090222208 Magnetic Beacon Guidance System
09/03/2009US20090219171 Method and Apparatus for Locating A Plug Within the Well
09/03/2009US20090219029 Method for hydrocarbon reservoir mapping and apparatus for use when performing the method
09/03/2009US20090219028 Methods for Controlling Ion Beam and Target Voltage in a Neutron Generator for Improved Performance
09/03/2009US20090219027 Multi-sensor system for the detection and characterization of unexploded ordnance
09/03/2009DE202008017405U1 Magnetometer mit einem Vierkontakt-Hall-Geber Magnetometer with a four-contact Hall encoder
09/03/2009DE102008007705A1 Vorrichtung und Verfahren zur Grenzflächendetektion in Bodenschichten Apparatus and method for boundary detection in soil layers
09/03/2009CA2715792A1 Method of determining a transient electromagnetic response of a formation
09/03/2009CA2656682A1 A detector for calculating the distortion of an electromagnetic field produced by a buried current carrying conductor
09/03/2009CA2656677A1 A detector for calculating a depth of a buried conductor
09/03/2009CA2656669A1 A detector for calculating the depth of a buried conductor
09/02/2009EP2096468A1 Non-destructive determination of the pore size distribution and the distribution of fluid flow velocities
09/02/2009EP2096467A2 Transmitter of a system for detecting a buried conductor
09/02/2009EP2096466A2 A detector for detecting a current carrying conductor and a method of validating operation of the detector