The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 10, 2018
Filed:
Nov. 19, 2013
Applicant:
GE Healthcare As, Oslo, NO;
Inventors:
Jan Cervenka, Oslo, NO;
Mikkel Thaning, Oslo, NO;
Andreas Olsson, Oslo, NO;
Christian Glogard, Oslo, NO;
Assignee:
GE Healthcare AS, Oslo, NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 49/04 (2006.01); C07C 231/24 (2006.01); C07C 237/46 (2006.01);
U.S. Cl.
CPC ...
C07C 231/24 (2013.01); A61K 49/0438 (2013.01); C07C 237/46 (2013.01); A61K 49/0447 (2013.01);
Abstract
The present invention relates to a process for purification of iodinated X-ray contrast agents and in particular to purification of crude dimeric contrast agents, such as Iodixanol and Ioforminol. More particularly, the invention relates to purification of such X-ray contrast agents using membrane technology to remove monomeric impurities.