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. 25, 2013
Filed:
Dec. 06, 2010
Arun Kanti Mandal, Mumbai, IN;
Kamlesh Jayantilal Ranbhan, Thane, IN;
Ganesh Gurpur Pai, Thane, IN;
Abhilesh Agarwal, Chicago, IL (US);
Rakesh Vikraman Nair Rema, Lisle, IL (US);
Asha Oroskar, Oak Brook, IL (US);
Arun Kanti Mandal, Mumbai, IN;
Kamlesh Jayantilal Ranbhan, Thane, IN;
Ganesh Gurpur Pai, Thane, IN;
Abhilesh Agarwal, Chicago, IL (US);
Rakesh Vikraman Nair Rema, Lisle, IL (US);
Asha Oroskar, Oak Brook, IL (US);
Orochem Technologies Inc., Naperville, IL (US);
Abstract
This invention concerns generally with a process for purifying crude pharmaceutical compositions, wherein the crude pharmaceutical composition comprises a sodium salt of Montelukast and more particularly relates to a process for the production of pharmaceutically pure preparations of Montelukast sodium using simulated moving bed technology, without requiring an intermediate acid formation step to separate isomers and to remove impurities.