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)
12/2004
12/02/2004US20040238587 Manually operated working tool
12/01/2004EP1481636A1 Apparatus, method and software for tracking an object
12/01/2004EP1481391A1 Methods and systems for generating phase-derivative sound
12/01/2004CN1552035A Method of imaging subsurface formations using a virtual source array
12/01/2004CN1178072C Method for determining nature of subterranean reservoirs
11/2004
11/30/2004US6825793 System and method for detecting and locating underground objects
11/30/2004US6825775 Method and system for reducing interference
11/30/2004US6825765 Occupant detection system
11/30/2004US6825659 Method and apparatus for nuclear magnetic resonance measuring while drilling
11/30/2004US6825658 NMR logging apparatus and methods for fluid typing
11/30/2004US6825657 Magnetic resonance method for characterizing fluid samples withdrawn from subsurface earth formations
11/30/2004US6825456 Signal processing for object detection system
11/30/2004CA2304310C Resistivity log correction method
11/29/2004CA2468324A1 Dynamic metal immunity by hysteresis
11/25/2004WO2004102222A1 Object detector, method for detecting object, program for detecting object, distance sensor
11/25/2004WO2004102173A2 Time-domain data integration of multiple gradient, multiple te echo trains
11/25/2004WO2004086090A3 A method for monitoring a high-resistivity reservoir rock formation
11/25/2004WO2003075749A3 Method and apparatus for refinably accurate localization of devices and instruments in scattering environments
11/25/2004US20040235455 Integrating GSM and WiFi service in mobile communication devices
11/25/2004US20040233048 Device for detecting the presence of objects in a blind angle of a motor vehicle
11/25/2004US20040232917 Detection of subsurface resistivity contrasts with application to location of fluids
11/25/2004US20040232915 Method for eliminating effects of acoustic excitations in nmr data
11/25/2004US20040232774 Judgment lock for occupant detection air bag control
11/25/2004US20040232329 Radar imaging apparatus
11/25/2004DE102004011674A1 Minensuchsonde Mine detection probe
11/24/2004EP1478950A1 Measuring appliance comprising integrated operating instructions
11/24/2004EP1478949A1 Method and measuring device for locating enclosed objects
11/24/2004EP1478948A1 Method and measuring appliance for locating enclosed objects
11/24/2004EP1478947A1 Method and measuring appliance for enclosed objects
11/24/2004EP1478824A2 Well system
11/24/2004CN1548986A Detecting tool motion effects on nuclear magnetic resonance measurements
11/23/2004US6823205 Synthetic images for a magnetic resonance imaging scanner using linear combination of source images to generate contrast and spatial navigation
11/23/2004US6822579 Steerable transceiver unit for downhole data acquistion in a formation
11/23/2004US6822454 Microfluidic device with multiple microcoil NMR detectors and field gradient focusing
11/23/2004US6822429 Inductive sensor arrangement comprising three sense coils cooperating with said three field coils to form three field/sense coil pairs and method for detecting of ferrous metal objects
11/23/2004US6822171 Article handling system
11/23/2004CA2246298C Multiple frequency method for nuclear magnetic resonance longitudinal relaxation measurement and pulsing sequence for power use optimization
11/18/2004WO2004099817A2 Systems and methods for nmr logging
11/18/2004WO2004099816A2 Method for predicting properties of a sedimentary deposit from a thickness contour of the deposit
11/18/2004WO2004099552A2 Determining gradients using a multi-probed formation tester
11/18/2004US20040230726 Topology for shared memory computer system
11/18/2004US20040230378 Determining gradients using a multi-probed formation tester
11/18/2004US20040227517 System and method for locating underground utilities carrying passive signals
11/18/2004US20040227514 Synthetic images for a magnetic resonance imaging scanner using linear combination of source images to generate contrast and spatial navigation
11/18/2004US20040227512 Systems and methods for estimating properties of a sample
11/18/2004CA2523520A1 Method for predicting properties of a sedimentary deposit from a thickness contour of the deposit
11/18/2004CA2521679A1 Method of estimating the spatial variation of magnetic resonance imaging radiofrequency (rf) signal intensities within an object from the measured intensities in a uniform spin density medium surrounding the object
11/17/2004EP1477953A2 Moving body detection system
11/17/2004EP1476771A1 Positioning system for data acquisition
11/17/2004EP1476770A1 Side-looking nmr probe for oil well logging
11/17/2004EP1402639B1 Non-contact proximity sensor
11/16/2004US6819242 Apparatus for use with capacitive presence detection systems
11/16/2004US6819241 System and method for scanning individuals for illicit objects
11/16/2004US6819115 Fault location device and method
11/16/2004US6819112 Method of combining vertical and magnetic dipole induction logs for reduced shoulder and borehole effects
11/16/2004US6819111 Method of determining vertical and horizontal resistivity, and relative dip in anisotropic earth formations having an arbitrary electro-magnetic antenna combination and orientation with additional rotation and position measurements
11/16/2004US6819110 Electromagnetic resistivity logging instrument with transverse magnetic dipole component antennas providing axially extended response
11/16/2004US6819109 Magnetic detector extendable wand
11/16/2004CA2358124C Water saturation and sand fraction determination from borehole resistivity imaging tool, transverse induction logging and a tensorial water saturation model
11/11/2004WO2004097459A1 Seismic-electric water-table detection system and method
11/11/2004WO2004097456A2 Systems and methods for a portable walk-through metal detector
11/11/2004WO2004097173A1 An improved shielded apparatus for electrically exploring geological formation through which a borehole passes
11/11/2004US20040225441 Automated borehole geology and petrophysics interpretation using image logs
11/11/2004US20040225213 Magnetic resonance imaging coated assembly
11/11/2004US20040222887 Microwave sensor
11/11/2004US20040222805 Device for the simultaneous application of electrical signals and measurement of the electrical potential in a sample
11/11/2004US20040222801 Process for determining the position of an influencing element with an inductive position sensor
11/11/2004US20040222791 Time-domain data integration of multiple gradient, multiple TE echo trains
11/11/2004DE10207722B4 Probenkopf für ein Elektronenspinresonanz-Dosimeter Probe head for an electron spin resonance dosimeter
11/11/2004DE102004015889A1 Vorrichtung und Verfahren zum Orten von Kabeln Apparatus and method for locating cables
11/10/2004EP1474709A1 Electronic marker locator system and method
11/10/2004EP1474708A1 Locating device and corresponding method
11/10/2004EP1171773A4 Permeability-modulated carrier referencing
11/10/2004CN2655259Y Pulse width changeable power supplying transmitter
11/10/2004CN1545628A 增益系数和位置确定系统 Determining the system gain factor and location
11/10/2004CN1544960A Broad spectrum current drive measuring system and measuring mode
11/10/2004CN1544959A Resistance tomography data acquisition system based on bipolar pulse current drive
11/09/2004US6816794 Apparatus and method for detecting contamination of object by a metal
11/09/2004US6816787 Generating and displaying a virtual core and a virtual plug associated with a selected piece of the virtual core
11/09/2004US6816077 Multiple sensor vehicle occupant detection for air bag deployment control
11/09/2004US6815954 Method and apparatus for full offset resistivity imaging for use in boreholes
11/09/2004US6815953 Detecting field distortion in underground line location
11/09/2004US6815950 J-spectroscopy in the wellbore
11/09/2004US6815946 Magnetically activated well tool
11/09/2004US6815945 Apparatus detecting relative body movement
11/09/2004CA2327157C Method and apparatus for directional well logging
11/04/2004WO2004095076A1 Buried line locator with integral position sensing
11/04/2004US20040220741 Adjustment for frequency dispersion effects in electromagnetic logging data
11/04/2004US20040218471 Method and device for detecting objects, especially used as a parking assistance device in a motor vehicle
11/04/2004US20040217879 Motor pulse controller
11/04/2004US20040217862 Systems and methods for a portable walk-through metal detector
11/04/2004US20040217861 Efficient electronics for a walk-through metal detector
11/04/2004US20040217763 Loop antenna circuit useful in subterranean tool
11/04/2004US20040216923 Boring technique using locate point measurements for boring tool depth prediction
11/03/2004EP1472811A2 Burst qam downhole telemetry system
11/03/2004EP1309888B1 Apparatus and method for synchronized formation measurement
11/03/2004EP0852737B1 Lithology-independent gradient nmr gas detection
11/03/2004CN1174261C Flow speed wave generating method
11/02/2004US6812704 Device for evaluating the density of protons present in a given body using nmr
11/02/2004US6812699 Systems and methods for tuning an RF pulse by changing a pulse width of the RF pulse