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)
09/2010
09/28/2010US7805180 Method of modifying MR signals using ultrasound waves
09/28/2010US7804302 Method and apparatus for enhancing formation resistivity images obtained with downhole galvanic tools
09/28/2010US7804301 NMR probe
09/28/2010US7804300 Compact and flexible radio frequency coil arrays
09/28/2010US7804299 Diffusion weighted preparatory sequence for magnetic resonance imaging pulse sequence
09/28/2010US7804298 Nuclear magnetic resonance measuring method for solid samples
09/28/2010US7804297 Methodology for interpretation and analysis of NMR distributions
09/28/2010US7804296 Methods and apparatus for monitoring a property of a formation fluid
09/28/2010CA2524728C System for measuring earth formation resistivity through an electrically conductive wellbore casing
09/28/2010CA2472986C Occupant determination apparatus and occupant determination method
09/23/2010WO2010107856A2 Relative and absolute error models for subterranean wells
09/23/2010WO2010107685A1 Induction coil impedance modeling using equivalent circuit parameters
09/23/2010WO2010107672A2 Single well reservoir characterization apparatus and methods
09/23/2010WO2010105337A1 Geophysical prospecting using electric and magnetic components of natural electromagnetic fields
09/23/2010WO2010105333A1 Conversion system for mechanical keys
09/23/2010WO2010082193A3 Means and methods for providing high resolution mri
09/23/2010US20100237871 Pipe Survey Method Using UWB Signal
09/23/2010US20100237870 Geophysical Prospecting Using Electric And Magnetic Components Of Natural Electromagnetic Fields
09/23/2010US20100237860 Continuous wettability logging based on nmr measurements
09/23/2010DE102009013458A1 Method for detecting presence of solid, liquid or gaseous substance, involves generating high-frequency power, and frequency lies in microwave range of three hundred megahertz to three hundred gigahertz
09/23/2010CA2754152A1 Relative and absolute error models for subterranean wells
09/23/2010CA2747820A1 Conversion system for mechanical keys
09/22/2010EP2230535A2 Method and System for Calibrating Streamer Electrodes in a Marine Electromagnetic Survey System
09/22/2010EP2230534A1 Method for determining resistivity anistropy from earth electromagnetic responses
09/22/2010EP1203242B1 Nmr apparatus and methods for measuring volumes of hydrocarbon gas and oil
09/22/2010CN101842720A Fiber optic system for electromagnetic surveying
09/22/2010CN101840813A Proximity sensor and revolution operation detecting device
09/22/2010CN101840003A Green channel open vehicle radar detection method for metal contraband articles
09/22/2010CN101840002A Detection device and method for suspect metal object in shoe based on electromagnetic sensor
09/21/2010US7800513 High performance communication system
09/21/2010US7800374 Multi-component marine electromagnetic signal acquisition cable and system
09/21/2010US7800373 Method for correcting magnetic based orientation measurements for local biasing fields
09/21/2010US7800372 Resistivity tools with segmented azimuthally sensitive antennas and methods of making same
09/21/2010US7800371 Portable NMR device and method for making and using the same
09/21/2010US7800370 Receiver coil array for magnetic resonance imaging
09/21/2010US7800369 Hybrid automatic tuning/matching for NMR probes
09/21/2010US7800368 High field magnetic resonance
09/21/2010US7800367 Method and apparatus for generating T2* weighted magnetic resonance images
09/21/2010US7800366 Three dimensional magnetic resonance motion estimation on a single image plane
09/21/2010US7798214 Subsurface formation monitoring system and method
09/16/2010WO2010104907A2 Electromagnetic survey using naturally occurring electromagnetic fields as a source
09/16/2010WO2010104401A1 Method and apparatus for offshore hydrocarbon electromagnetic prospecting based on circulation of magnetic field derivative measurements
09/16/2010WO2010102376A1 Very low noise magnetometer
09/16/2010WO2010077649A3 Apparatus and methods for estimating downhole field compositions
09/16/2010WO2009058980A3 Formation testing and evaluation using localized injection
09/16/2010US20100235100 Method for determining resistivity anisotropy from earth electromagnetic responses
09/16/2010US20100231411 Long Distance Power Transfer Coupler for Wellbore Applications
09/16/2010US20100231225 Oil Based Mud Imaging Tool with Common Mode Voltage Compensation
09/16/2010US20100231224 Method and system for calibrating streamer electrodes in a marine electromagnetic survey system
09/16/2010US20100231223 Instrument for measuring electromagnetic signals
09/16/2010US20100231222 Very low noise magnetometer
09/16/2010US20100231221 Induction Coil Impedance Modeling using Equivalent Circuit Parameters
09/16/2010US20100230095 Method For Reservoir Fracture and Cross Beds Detection Using Tri-Axial/Multi-Component Resistivity Anisotropy Measurements
09/16/2010DE102009047858A1 Method for determining metallic particles i.e. iron particles, in underground during cleaning, involves measuring voltage induced in underground using secondary coil, where secondary coil and primary coil are arranged in underground
09/16/2010DE102009010943A1 Betriebsverfahren und Spulenanordnung für einen magnetischen Sensor zur Detektion metallischer Objekte in einem Untergrund Operating method and coil assembly for a magnetic sensor for detecting metallic objects in a subterranean
09/16/2010DE102005017718B4 MR-Bildgebungsverfahren und MRI-Spule MR imaging method and MRI coil
09/16/2010CA2696071A1 Method for determining resistivity anisotropy from earth electromagnetic responses
09/15/2010EP2227699A1 Apparatus and method for automatic control of current electrodes for electrical resistivity survey
09/15/2010CN201583670U Data collecting system for inland and offshore water magnetic prospecting
09/15/2010CN201583669U Portable small object detector
09/15/2010CN201583668U Screw locking state detection device
09/15/2010CN101833115A Life detection and rescue system based on augment reality technology and realization method thereof
09/15/2010CN101832748A Magnetic non-contact detection method of position of synchronous belt and rubber magnetic synchronous belt
09/14/2010US7797111 Wellbore logging performance verification method and apparatus
09/14/2010US7795873 Method for attenuating air wave response in marine electromagnetic surveying
09/14/2010US7795872 Determining correction factors representing effects of different portions of a lining structure
09/14/2010US7795871 NMR resonator configured as an insulated foil, conductively coated on both sides
09/14/2010US7795870 Magnetic resonance imaging and radio frequency impedance mapping methods and apparatus
09/14/2010US7795869 Processing of multiple echo data sets in magnetic resonance imaging
09/14/2010US7795868 Hyperpolarized dynamic chemical shift imaging with tailored multiband excitation pulses
09/14/2010US7795867 Method, apparatus and system for magnetic resonance analysis based on water magnetization transferred from other molecules
09/14/2010CA2617402C Magnetic sensor, and method of compensating temperature-dependent characteristic of magnetic sensor
09/14/2010CA2617385C Magnetic sensor, and method of compensating temperature-dependent characteristic of magnetic sensor
09/14/2010CA2499043C Azimuthally focused electromagnetic measurement tool
09/10/2010WO2010102093A2 Collocated tri-axial induction sensors with segmented horizontal coils
09/10/2010WO2010102016A2 Atomic magnetometers for use in the oil service industry
09/10/2010WO2010101490A1 Method for marine electrical exploration of oil and gas deposits
09/10/2010WO2010100852A1 Discrimination sensor, electronic device, monitoring system, and method for discriminating subject to be tested
09/10/2010WO2010065826A9 System and method for monitoring volume and fluid flow of a wellbore
09/10/2010CA2754455A1 Atomic magnetometers for use in the oil service industry
09/09/2010US20100225324 Multi-component marine electromagnetic signal aquisition method
09/09/2010US20100225323 Collocated Tri-Axial Induction Sensors With Segmented Horizontal Coils
09/09/2010US20100225322 System and method for elevated source to borehole electromagnetic survey
09/09/2010US20100225313 Atomic magnetometers for use in the oil service industry
09/09/2010US20100224409 System and method of using a saver sub in a drilling system
09/08/2010CN201577036U Pick-up appliance with position deviation detecting function
09/08/2010CN101824983A Signal transmission device
09/08/2010CN101414819B Sensing method and apparatus for controlling current source and compensating touch control capacitance
09/07/2010US7792643 Generating digital terrain models representing sub-surface strata
09/07/2010US7791345 Rectangular-wave transmitting metal detector
09/07/2010US7791344 Magnetic resonance RF transmission system and MR system and method using same
09/07/2010US7791343 Superconductor with enhanced high magnetic field properties, manufacturing method thereof, and MRI apparatus comprising the same
09/07/2010US7791342 Cancellation of ringing artifacts and far field interference in nuclear quadrupole resonance
09/07/2010US7791341 Image generating method, position correcting method and magnetic resonance imaging apparatus
09/07/2010US7791340 Magnetic resonance imaging apparatus and method that produce a virtual total cylindrical maximum real measurement volume
09/07/2010US7791339 RF-switched superconducting resonators and methods of switching thereof
09/07/2010US7791338 MRI method of determining time-optimal gradient waveforms with gradient amplitude as a function of arc-length in k-space
09/07/2010US7791337 Metal detector
09/02/2010WO2010099328A2 Spatially-selective reflector structures, reflector disks, and systems and methods for use thereof
09/02/2010WO2010068870A3 Apparatus and method for evaluating downhole fluids
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