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. 13, 2010
Filed:
Sep. 24, 2009
Applicants:
Arne Berg, Blommenholm, NO;
Harald Dugstad, Oslo, NO;
Michel Gacek, Hovik, NO;
Trygve Gulbrandsen, Kolsas, NO;
Per Strande, Oslo, NO;
Inventors:
Arne Berg, Blommenholm, NO;
Harald Dugstad, Oslo, NO;
Michel Gacek, Hovik, NO;
Trygve Gulbrandsen, Kolsas, NO;
Per Strande, Oslo, NO;
Assignee:
GE Healthcare AS, Oslo, NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C 233/65 (2006.01); C07C 233/05 (2006.01);
U.S. Cl.
CPC ...
Abstract
This invention relates generally to non-ionic X-ray contrast agents. It further relates to the synthesis of iodixanol. In particular, it relates to alternative dimerisation reagents in the conversion of 5-acetamido-N,N'-bis(2,3-dihydroxypropyl)-2,4,6-triiodoisophthalamide ('Compound A') to iodixanol.