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:
May. 04, 2010
Filed:
Sep. 20, 2007
Applicants:
Kiran Kumar Kothakonda, Brantford, CA;
Daqing Che, Brantford, CA;
Inventors:
Kiran Kumar Kothakonda, Brantford, CA;
Daqing Che, Brantford, CA;
Assignee:
Apotex PharmAchem Inc., Brantford, CA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07D 498/22 (2006.01);
U.S. Cl.
CPC ...
Abstract
A stable amorphous form of rifaximin is disclosed. This form is chemically and polymorphically stable on storage and can be prepared by dissolving rifaximin in a solvent to form a solution, which is precipitated by adding an anti-solvent and isolating of the precipitated amorphous rifaximin as an end product.