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Inventor

Kjell Kristoffersen

Inventor
Oslo, NO

Overview

37→
Patents
1985–2020
Patent span
Physics
Primary field (CPC G)

Patents· 37 as inventor

Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.

G01Sprimary
G01SRadio direction-finding39%
A61BDiagnosis34%
B06BMethods or apparatus for generating or transmitting mechanical vibrations of infrasonic, sonic, or ultrasonic frequency, e.g. for performing mechanical work in general7%
G03BApparatus or arrangements for taking photographs or for projecting or viewing them6%
G10KSound-producing devices6%
G01PMeasuring linear or angular speed, acceleration, deceleration, or shock3%
G01FMeasuring volume, volume flow, mass flow or liquid level1%
G06FElectric digital data processing1%
G06TImage data processing or generation, in general1%
G16HHealthcare informatics, i.e. information and communication technology [ict] specially adapted for the handling or processing of medical or healthcare data1%
PatentTitleYear
10,874,373Method and system for measuring flow through a heart valve20209,949,718Method and system for controlling communication of data via digital demodulation in a diagnostic ultrasound system20189,874,631Ultrasound probe and ultrasound imaging system2018RE046603'Method and system for monitoring a transducer array in an ultrasound system'20179,575,165'Ultrasound probe and ultrasound imaging system'20179,204,862'Method and apparatus for performing ultrasound elevation compounding'20159,182,658'Transmit beamforming in 3-dimensional ultrasound'20159,179,892'System and method for ultrasound imaging'20158,876,715'Method and system for correcting ultrasound data'20148,808,185'System and method for generating a patient diagnosis'20148,792,295'Method and system for monitoring a transducer array in an ultrasound system'20148,475,380'Reduction of multiline artifacts in doppler imaging'20138,128,563'Method and apparatus for reducing size of ultrasound transducer cable'20128,096,951'Transmit beamforming in 3-dimensional ultrasound'20127,952,260'Ultrasound imaging system'20117,775,982'Method and system for sub-aperture processing'20107,687,976'Ultrasound imaging system'20107,527,591'Ultrasound probe distributed beamformer'20097,527,592'Ultrasound probe sub-aperture processing'20097,451,650'Systems and methods for adjusting gain within an ultrasound probe'20087,338,450'Method and apparatus for performing CW doppler ultrasound utilizing a 2D matrix array'20087,297,118'Ultrasound method and apparatus for multi-line acquisition'20077,022,074'Method and apparatus for generating a multi-level ultrasound pulse'20066,863,655'Ultrasound display of tissue, tracking and tagging'20056,652,462'Ultrasound display of movement parameter gradients'20036,592,522'Ultrasound display of displacement'20036,579,240'Ultrasound display of selected movement parameter values'20036,537,217'Method and apparatus for improved spatial and temporal resolution in ultrasound imaging'20036,390,984'Method and apparatus for locking sample volume onto moving vessel in pulsed doppler ultrasound imaging'20026,039,692'Method and apparatus for processing ultrasound signals'20005,820,561'Analysis and measurement of temporal tissue velocity information'19985,662,115'Method for determining the velocity-time spectrum of blood flow'19975,560,363'Method for calculation of blood velocity and blood velocity spread from multi gated doppler signals'19964,934,373'Method and apparatus for synthesizing a continuous estimate signal from segments of a Gaussian signal provided by ultra sonic doppler measurement on a fluid flow'19904,932,415'Method of color coding two dimensional ulltrasonic doppler velocity images of blood flow on a display'19904,848,354'Method and apparatus for investigating a circulatory system in living biological structures'19894,559,952'Method of ultrasonically measuring blood flow velocity'1985

Career & activity timeline

Assembled from patent assignee/location history and declaration credentials.

1985Based in Trondheim, NO· patent location history
1989–2020Based in Oslo, NO· patent location history
1990–2000Patents assigned to VINGMED SOUND AS (5)· patent assignee history
2002–2007Patents assigned to GE MED SYS GLOBAL TECH CO LLC (8)· patent assignee history
2003Based in Olso, NO· patent location history
2008–2020Patents assigned to GEN ELECTRIC (21)· patent assignee history
2012–2018Patents assigned to KRISTOFFERSEN KJELL (11)· patent assignee history
2012–2017Patents assigned to HAIDER BRUNO HANS (4)· patent assignee history
2013Based in Horton, NO· patent location history
2015–2018Based in Horten, NO· patent location history

Inventor activity

Assignee and location history derived from the patent record.

Assignees
AssigneePatentsSpan
GEN ELECTRIC212008–2020
KRISTOFFERSEN KJELLself112012–2018
GE MED SYS GLOBAL TECH CO LLC82002–2007
VINGMED SOUND AS51990–2000
HAIDER BRUNO HANS42012–2017
Locations
LocationPatentsSpan
Oslo, NO311989–2020
Horten, NO32015–2018
Horton, NO12013
Olso, NO12003
Trondheim, NO11985