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:
Jul. 05, 2016
Filed:
Dec. 18, 2014
Applicant:
Generics [uk] Limited, Hertfordshire, GB;
Inventors:
Assignee:
Generics [UK] Limited, Hertfordshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 487/00 (2006.01); A61K 31/519 (2006.01); C07D 487/04 (2006.01);
U.S. Cl.
CPC ...
A61K 31/519 (2013.01); C07D 487/04 (2013.01);
Abstract
The present invention relates to the active pharmaceutical ingredient dipyridamole. In particular, it relates to efficient processes for the preparation of dipyridamole which are amenable to large scale commercial production and provide the required product with improved yield and purity. The present invention also relates to a novel crystallization method for the purification of dipyridamole.