Patents by Inventor Inger Dagny Saanum

Inger Dagny Saanum 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).

  • Alternative process for the purification of an intermediate in the synthesis of non-ionic X-ray contrast agents
    Patent number: 10011560
    Abstract: Alternative continuous downstream processes for the production of 5-acetamido-N,N?-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide (“Compound A”) are described. Compound A is a key intermediate in the production of iodixanol and iohexol, which are two of the biggest commercially available non-ionic x-ray contrast media agents.
    Type: Grant
    Filed: May 24, 2017
    Date of Patent: July 3, 2018
    Assignee: GE HEALTHCARE AS
    Inventors: Torfinn Haaland, Arne Askildsen, Rita Heskestad Kalleberg, Sumihar Silalahi, Alf Martin Farbrot, Inger Dagny Saanum
  • Alternative process for the purification of an intermediate in the synthesis of non-ionic X-ray contrast agents
    Patent number: 9834504
    Abstract: Alternative continuous downstream processes for the production of 5-acetamido-N,N?-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide (“Compound A”) are described. Compound A is a key intermediate in the production of iodixanol and iohexol, which are two of the biggest commercially available non-ionic x-ray contrast media agents.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: December 5, 2017
    Assignee: GE Healthcare AS
    Inventors: Torfinn Haaland, Arne Askildsen, Rita Heskestad Kalleberg, Sumihar Silalahi, Alf Martin Farbrot, Inger Dagny Saanum
  • ALTERNATIVE PROCESS FOR THE PURIFICATION OF AN INTERMEDIATE IN THE SYNTHESIS OF NON-IONIC X-RAY CONTRAST AGENTS
    Publication number: 20170253556
    Abstract: Alternative continuous downstream processes for the production of 5-acetamido-N,N?-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide (“Compound A”) are described. Compound A is a key intermediate in the production of iodixanol and iohexol, which are two of the biggest commercially available non-ionic x-ray contrast media agents.
    Type: Application
    Filed: May 24, 2017
    Publication date: September 7, 2017
    Applicant: GE HEALTHCARE AS
    Inventors: Torfinn HAALAND, Arne ASKILDSEN, Rita Heskestad KALLEBERG, Sumihar SILALAHI, Alf Martin FARBROT, Inger Dagny SAANUM
  • Alternative process for the purification of an intermediate in the synthesis of non-ionic X-ray contrast agents
    Patent number: 9695113
    Abstract: Alternative continuous downstream processes for the production of 5-acetamido-N,N?-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide (“Compound A”) are described. Compound A is a key intermediate in the production of iodixanol and iohexol, which are two of the biggest commercially available non-ionic x-ray contrast media agents.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: July 4, 2017
    Assignee: GE Healthcare AS
    Inventors: Torfinn Haaland, Arne Askildsen, Rita Heskestad Kalleberg, Sumihar Silalahi, Alf Martin Farbrot, Inger Dagny Saanum
  • Alternative acetylation process in the synthesis of non-ionic X-ray contrast agents
    Patent number: 9688614
    Abstract: An alternative acetylation process for the synthesis of 5-acetamido-N,N?-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide (“Compound A”), an intermediate in the industrial preparation of non-ionic X-ray contrast agents, is described. The process can be performed on an industrial scale to produce Compound A with improved purity and improved yields compared to the established processes.
    Type: Grant
    Filed: December 8, 2014
    Date of Patent: June 27, 2017
    Assignee: GE Healthcare AS
    Inventors: Inger Dagny Saanum, Torfinn Haaland, Rita Heskestad Kalleberg
  • ALTERNATIVE ACETYLATION PROCESS IN THE SYNTHESIS OF NON-IONIC X-RAY CONTRAST AGENTS
    Publication number: 20160304438
    Abstract: An alternative acetylation process for the synthesis of 5-acetamido-N,N?-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide (“Compound A”), an intermediate in the industrial preparation of non-ionic X-ray contrast agents, is described. The process can be performed on an industrial scale to produce Compound A with improved purity and improved yields compared to the established processes.
    Type: Application
    Filed: December 8, 2014
    Publication date: October 20, 2016
    Inventors: Inger Dagny Saanum, Torfinn Haaland, Rita Heskestad Kalleberg
  • ALTERNATIVE PROCESS FOR THE PURIFICATION OF AN INTERMEDIATE IN THE SYNTHESIS OF NON-IONIC X-RAY CONTRAST AGENTS
    Publication number: 20160297749
    Abstract: Alternative continuous downstream processes for the production of 5-acetamido-N,N?-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide (“Compound A”) are described. Compound A is a key intermediate in the production of iodixanol and iohexol, which are two of the biggest commercially available non-ionic x-ray contrast media agents.
    Type: Application
    Filed: December 8, 2014
    Publication date: October 13, 2016
    Inventors: Torfinn HAALAND, Arne ASKILDSEN, Rita Heskestad KALLEBERG, Sumihar SILALAHI, Alf Martin FARBROT, Inger Dagny SAANUM
  • ALTERNATIVE PROCESS FOR THE PURIFICATION OF AN INTERMEDIATE IN THE SYNTHESIS OF NON-IONIC X-RAY CONTRAST AGENTS
    Publication number: 20160289174
    Abstract: Alternative continuous downstream processes for the production of 5-acetamido-N,N?-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide (“Compound A”) are described. Compound A is a key intermediate in the production of iodixanol and iohexol, which are two of the biggest commercially available non-ionic x-ray contrast media agents.
    Type: Application
    Filed: December 8, 2014
    Publication date: October 6, 2016
    Applicant: GE HEALTHCARE AS
    Inventors: Torfinn Haaland, Arne ASKILDSEN, Rita Heskestad Kalleberg, Sumihar Silalahi, Alf Martin Farbrot, Inger Dagny Saanum