Patents by Inventor Knut Dyrstad

Knut Dyrstad has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10758887
    Abstract: The present invention relates to calibration and normalization systems and methods for ensuring the quality of radiopharmaceuticals during the synthesis thereof, such as radiopharmaceuticals used in Positron Emission Tomography (PET) and Single-Photon Emission Computed Tomography (SPECT).
    Type: Grant
    Filed: July 23, 2018
    Date of Patent: September 1, 2020
    Assignee: GE HEALTHCARE LIMITED
    Inventors: Torgrim Engell, Julian Grigg, Ingvil Gausemel, Knut Dyrstad, Jonathan R. Shales
  • Publication number: 20190001296
    Abstract: The present invention relates to calibration and normalization systems and methods for ensuring the quality of radiopharmaceuticals during the synthesis thereof, such as radiopharmaceuticals used in Positron Emission Tomography (PET) and Single-Photon Emission Computed Tomography (SPECT).
    Type: Application
    Filed: July 23, 2018
    Publication date: January 3, 2019
    Inventors: Torgrim Engell, Julian Grigg, Ingvil Gausemel, Knut Dyrstad, Jonathan R. Shales
  • Patent number: 10029228
    Abstract: The present invention relates to calibration and normalization systems and methods for ensuring the quality of radiopharmaceuticals during the synthesis thereof, such as radiopharmaceuticals used in Positron Emission Tomography (PET) and Single-Photon Emission Computed Tomography (SPECT).
    Type: Grant
    Filed: September 24, 2012
    Date of Patent: July 24, 2018
    Assignee: GE Healthcare Limited
    Inventors: Torgrim Engell, Julian Grigg, Ingvil Gausemel, Knut Dyrstad, Jonathan R. Shales
  • Publication number: 20140257566
    Abstract: The present invention relates to calibration and normalization systems and methods for ensuring the quality of radiopharmaceuticals during the synthesis thereof, such as radiopharmaceuticals used in Positron Emission Tomography (PET) and Single-Photon Emission Computed Tomography (SPECT).
    Type: Application
    Filed: September 24, 2012
    Publication date: September 11, 2014
    Inventors: Torgrim Engell, Julian Grigg, Ingvil Gausemel, Knut Dyrstad, Jonathan R. Shales
  • Patent number: 5980460
    Abstract: Temporal variations in backscatter from an ultrasound contrast agent located in the vascular system and induced by movement of the scatterers are used to visualize the presence of contrast agent by determining areas where correlation between successive ultrasound images is poor. This low level of correlation from intravascular contrast agent movement permits distinction between stationary bulk tissue and moving bulk tissue since movement of the latter solid tissue scatterers is correlated.
    Type: Grant
    Filed: April 1, 1998
    Date of Patent: November 9, 1999
    Assignee: Nycomed Imaging AS
    Inventors: Jonny .O slashed.stensen, Morten Eriksen, Lars Hoff, Sigmund Frigstad, Nils Sponheim, Knut Dyrstad
  • Patent number: 5601085
    Abstract: Temporal variations in backscatter from an ultrasound contrast agent located in the vascular system and induced by movement of the scatterers are used to visualise the presence of contrast agent by determining areas where correlation between successive ultrasound images is poor. This low level of correlation arising from intravascular contrast agent movement permits distinction between stationary bulk tissue and moving bulk tissue since movement of the latter solid tissue scatterers is correlated.
    Type: Grant
    Filed: October 2, 1995
    Date of Patent: February 11, 1997
    Assignee: Nycomed Imaging AS
    Inventors: Jonny Ostensen, Morton Eriksen, Lars Hoff, Sigmund Frigstad, Nils Sponheim, Knut Dyrstad