Patents by Inventor HANNE JORUNN H. JOHNSEN

HANNE JORUNN H. JOHNSEN 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).

  • Synthesis of iodixanol in propyleneglycol
    Patent number: 8969619
    Abstract: This invention relates to the synthesis of iodixanol (1,3-bis(acetamido)-N,N?-bis[3,5-bis(2,3-dihydroxypropylaminocarbonyl)-2,4,6-triiodophenyl]-2-hydroxypropane), more specifically to the dimerisation of 5-acetamido-N,N?-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-isophthalamide with propyleneglycol as solvent.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: March 3, 2015
    Assignee: GE Healthcare AS
    Inventors: Hanne Jorunn H. Johnsen, Lars Terje Holmaas, Trond Kjernli, Ole Magne Homestad
  • Synthesis of iodixanol in methanol
    Patent number: 8962886
    Abstract: This invention relates to the synthesis of iodixanol (1,3-bis(acetamido)-N,N?-bis[3,5-bis(2,3-dihydroxypropylaminocarbonyl)-2,4,6-triiodophenyl]-2-hydroxypropane), more specifically to the dimerisation of 5-acetamido-N,N?-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-isophthalamide with methanol as solvent.
    Type: Grant
    Filed: November 19, 2009
    Date of Patent: February 24, 2015
    Assignee: GE Healthcare AS
    Inventors: Hanne Jorunn H. Johnsen, Lars Terje Holmaas, Ole Magne Homestad
  • SYTNHESIS OF IODIXANOL IN PROPYLENEGLYCOL
    Publication number: 20110021830
    Abstract: This invention relates to the synthesis of iodixanol (1,3-bis(acetamido)-N,N?-bis[3,5-bis(2,3-dihydroxypropylaminocarbonyl)-2,4,6-triiodophenyl]-2-hydroxypropane), more specifically to the dimerisation of 5-acetamido-N,N?-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-isophthalamide with propyleneglycol as solvent.
    Type: Application
    Filed: November 19, 2009
    Publication date: January 27, 2011
    Applicant: GE HEALTHCARE AS
    Inventors: HANNE JORUNN H. JOHNSEN, LARS TERJE HOLMAAS, TROND KJERNLI, OLE MAGNE HOMESTAD
  • SYTNHESIS OF IODIXANOL IN METHANOL
    Publication number: 20110021829
    Abstract: This invention relates to the synthesis of iodixanol (1,3-bis(acetamido)-N,N?-bis[3,5-bis(2,3-dihydroxypropylaminocarbonyl)-2,4,6-triiodophenyl]-2-hydroxypropane), more specifically to the dimerisation of 5-acetamido-N,N?-bis(2,3-dihydroxypropyl)-2,4,6-triiodo-isophthalamide with methanol as solvent.
    Type: Application
    Filed: November 19, 2009
    Publication date: January 27, 2011
    Applicant: GE HEALTHCARE AS
    Inventors: HANNE JORUNN H. JOHNSEN, LARS TERJE HOLMAAS, OLE MAGNE HOMESTAD