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:
Jun. 02, 2009
Filed:
Dec. 16, 2004
Applicants:
Eli Ryssdal Andersen, Spangereid, NO;
Lars Terje Holmaas, Spangereid, NO;
Vidar Olaisen, Spangereid, NO;
Inventors:
Eli Ryssdal Andersen, Spangereid, NO;
Lars Terje Holmaas, Spangereid, NO;
Vidar Olaisen, Spangereid, NO;
Assignee:
GE Healthcare AS, Oslo, NO;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 51/00 (2006.01); A61M 36/14 (2006.01);
U.S. Cl.
CPC ...
Abstract
Process for the production of DTPA-bis(anhydride) by reacting DTPA with acetic anhydride in pyridine under elevated temperature wherein the molar amount of pyridine is equal to or less than 6 times the molar amount of DTPA.