Inventor · disambiguated record
Kjell Kristoffersen
Also filed as: KRISTOFFERSEN KJELL
40 granted patents·8 pending applications·1,338 citations·filing 1982–2025
98Inventor score
Files withGEN ELECTRIC12GE MED SYS GLOBAL TECH CO LLC8KRISTOFFERSEN KJELL6GE PREC HEALTHCARE LLC5VINGMED SOUND AS5
Top patents by PatentIndex Score
48 records- 0196US7687976B2Ultrasound imaging systemGEN ELECTRIC·Filed 2007·Granted Mar 30, 2010·103 cites·22 claims
- 0290US6537217B1Method and apparatus for improved spatial and temporal resolution in ultrasound imagingGE MED SYS GLOBAL TECH CO LLC·Filed 2001·Granted Mar 25, 2003·114 cites·24 claims
- 0388US6579240B2Ultrasound display of selected movement parameter valuesGE MED SYS GLOBAL TECH CO LLC·Filed 2002·Granted Jun 17, 2003·77 cites·20 claims
- 0487US7338450B2Method and apparatus for performing CW doppler ultrasound utilizing a 2D matrix arrayGEN ELECTRIC·Filed 2004·Granted Mar 4, 2008·98 cites·22 claims
- 0587US5820561AAnalysis and measurement of temporal tissue velocity informationVINGMED SOUND AS·Filed 1996·Granted Oct 13, 1998·156 cites·38 claims
- 0686US9575165B2Ultrasound probe and ultrasound imaging systemMILLER STEVEN CHARLES·Filed 2010·Granted Feb 21, 2017·12 cites·23 claims
- 0786US7952260B2Ultrasound imaging systemGEN ELECTRIC·Filed 2010·Granted May 31, 2011·23 cites·12 claims
- 0884US6039692AMethod and apparatus for processing ultrasound signalsVINGMED SOUND AS·Filed 1998·Granted Mar 21, 2000·107 cites·44 claims
- 0983US6592522B2Ultrasound display of displacementGE MED SYS GLOBAL TECH CO LLC·Filed 2002·Granted Jul 15, 2003·55 cites·20 claims
- 1082US6863655B2Ultrasound display of tissue, tracking and taggingGE MED SYS GLOBAL TECH CO LLC·Filed 2002·Granted Mar 8, 2005·53 cites·22 claims
- 1181US5662115AMethod for determining the velocity-time spectrum of blood flowVINGMED SOUND AS·Filed 1995·Granted Sep 2, 1997·107 cites·7 claims
- 1278US6652462B2Ultrasound display of movement parameter gradientsGE MED SYS GLOBAL TECH CO LLC·Filed 2002·Granted Nov 25, 2003·41 cites·20 claims
- 1377US6390984B1Method and apparatus for locking sample volume onto moving vessel in pulsed doppler ultrasound imagingGE MED SYS GLOBAL TECH CO LLC·Filed 2000·Granted May 21, 2002·41 cites·30 claims
- 1476US7527592B2Ultrasound probe sub-aperture processingGEN ELECTRIC·Filed 2003·Granted May 5, 2009·35 cites·32 claims
- 1574US7775982B2Method and system for sub-aperture processingGEN ELECTRIC·Filed 2006·Granted Aug 17, 2010·12 cites·25 claims
- 1674US2025345034A1Methods and systems for ultrasound imagingGE PREC HEALTHCARE LLC·Filed 2025·Application pending·0 cites
- 1773US8096951B2Transmit beamforming in 3-dimensional ultrasoundKRISTOFFERSEN KJELL·Filed 2007·Granted Jan 17, 2012·12 cites·17 claims
- 1873US7022074B2Method and apparatus for generating a multi-level ultrasound pulseGE MED SYS GLOBAL TECH CO LLC·Filed 2003·Granted Apr 4, 2006·30 cites·24 claims
- 1968US7297118B2Ultrasound method and apparatus for multi-line acquisitionGE MED SYS GLOBAL TECH CO LLC·Filed 2003·Granted Nov 20, 2007·22 cites·18 claims
- 2066US9874631B2Ultrasound probe and ultrasound imaging systemGEN ELECTRIC·Filed 2016·Granted Jan 23, 2018·1 cites·13 claims
- 2165US9179892B2System and method for ultrasound imagingHAUGEN GEIR ULTVEIT·Filed 2010·Granted Nov 10, 2015·4 cites·12 claims
- 2265US8808185B2System and method for generating a patient diagnosisROWLANDSON GORDON IAN·Filed 2008·Granted Aug 19, 2014·1 cites·22 claims
- 2364US8792295B2Method and system for monitoring a transducer array in an ultrasound systemKRISTOFFERSEN KJELL·Filed 2012·Granted Jul 29, 2014·3 cites·22 claims
- 2463USRE46603EMethod and system for monitoring a transducer array in an ultrasound systemGEN ELECTRIC·Filed 2014·Granted Nov 14, 2017·2 cites·26 claims
- 2562US4559952AMethod of ultrasonically measuring blood flow velocityVINGMED A S INKOGNITOGT·Filed 1982·Granted Dec 24, 1985·57 cites·24 claims
- 2660US4848354AMethod and apparatus for investigating a circulatory system in living biological structuresVINGMED AS·Filed 1988·Granted Jul 18, 1989·62 cites·13 claims
- 2758US12390189B2Methods and systems for ultrasound imaging with pulse-inversion scheme and retrospective transmit techniquesGE PREC HEALTHCARE LLC·Filed 2021·Granted Aug 19, 2025·0 cites·15 claims
- 2858US7527591B2Ultrasound probe distributed beamformerGEN ELECTRIC·Filed 2003·Granted May 5, 2009·27 cites·33 claims
- 2957US11974884B2Method and system for dynamically adjusting imaging parameters during an ultrasound scanGE PREC HEALTHCARE LLC·Filed 2021·Granted May 7, 2024·0 cites·20 claims
- 3057US8475380B2Reduction of multiline artifacts in doppler imagingKRISTOFFERSEN KJELL·Filed 2009·Granted Jul 2, 2013·5 cites·24 claims
- 3156US7451650B2Systems and methods for adjusting gain within an ultrasound probeGEN ELECTRIC·Filed 2004·Granted Nov 18, 2008·12 cites·21 claims
- 3255US9204862B2Method and apparatus for performing ultrasound elevation compoundingHAUGEN GEIR ULTVEIT·Filed 2011·Granted Dec 8, 2015·1 cites·14 claims
- 3355US8876715B2Method and system for correcting ultrasound dataHAIDER BRUNO HANS·Filed 2010·Granted Nov 4, 2014·1 cites·20 claims
- 3453US8128563B2Method and apparatus for reducing size of ultrasound transducer cableKRISTOFFERSEN KJELL·Filed 2007·Granted Mar 6, 2012·1 cites·21 claims
- 3551US10874373B2Method and system for measuring flow through a heart valveGEN ELECTRIC·Filed 2017·Granted Dec 29, 2020·0 cites·17 claims
- 3651US4934373AMethod and apparatus for synthesizing a continuous estimate signal from segments of a Gaussian signal provided by ultra sonic doppler measurement on a fluid flowVINGMED AS·Filed 1988·Granted Jun 19, 1990·12 cites·12 claims
- 3750US4932415AMethod of color coding two dimensional ulltrasonic doppler velocity images of blood flow on a displayVINGMED SOUND AS·Filed 1988·Granted Jun 12, 1990·36 cites·6 claims
- 3850US2011028845A1Reconfigurable Ultrasound Array with Low Noise CW ProcessingHAIDER BRUNO HANS·Filed 2009·Application pending·0 cites
- 3948US2009099453A1Stand-alone cw doppler probe interface for phased array ultrasound systemKRISTOFFERSEN KJELL·Filed 2007·Application pending·0 cites
- 4048US2016157827A1Methods and systems for ultrasound imagingGEN ELECTRIC·Filed 2014·Application pending·0 cites
- 4147US11998393B2System and method of signal processing for ultrasound arrays with mechanically adjustable transducer shapesGE PREC HEALTHCARE LLC·Filed 2020·Granted Jun 4, 2024·0 cites·5 claims
- 4247US9182658B2Transmit beamforming in 3-dimensional ultrasoundKRISTOFFERSEN KJELL·Filed 2011·Granted Nov 10, 2015·0 cites·18 claims
- 4342US2010113926A1System and method for clutter filter processing for improved adaptive beamformingGEN ELECTRIC·Filed 2008·Application pending·0 cites
- 4440US2024111046A1Method and system for flow processing on channel data for application of nonlinear beamformingGE PREC HEALTHCARE LLC·Filed 2019·Application pending·0 cites
- 4536US2010305448A1Apparatus and method for indicating ultrasound probe orientation and activation statusDAGONNEAU ANNE CECILE·Filed 2009·Application pending·0 cites
- 4634US9949718B2Method and system for controlling communication of data via digital demodulation in a diagnostic ultrasound systemSOKULIN ALEXANDER·Filed 2010·Granted Apr 24, 2018·0 cites·8 claims
- 4733US5560363AMethod for calculation of blood velocity and blood velocity spread from multi gated doppler signalsVINGMED SOUND AS·Filed 1995·Granted Oct 1, 1996·15 cites·4 claims
- 4829US2005113698A1Ultrasound probe transceiver circuitryFiled 2003·Application pending·0 cites
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