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. 03, 2014
Filed:
Jun. 02, 2009
Bandi Parthasaradhi Reddy, Andhra Pradesh, IN;
Kura Rathnakar Reddy, Andhra Pradesh, IN;
Rapolu Raji Reddy, Andhra Pradesh, IN;
Dasari Muralidhara Reddy, Andhra Pradesh, IN;
Kesireddy Subash Chander Reddy, Andhra Pradesh, IN;
Bandi Parthasaradhi Reddy, Andhra Pradesh, IN;
Kura Rathnakar Reddy, Andhra Pradesh, IN;
Rapolu Raji Reddy, Andhra Pradesh, IN;
Dasari Muralidhara Reddy, Andhra Pradesh, IN;
Kesireddy Subash Chander Reddy, Andhra Pradesh, IN;
Hetero Research Foundation, , IN;
Abstract
The present invention provides novel polymorphs of raltegravir potassium, processes for their preparation and pharmaceutical compositions comprising them. Thus for example, raltegravir potassium was added to water and stirred for 15 minutes, the solution was filtered on hiflo bed and the bed washed with water, the resulting solution was subjected to freeze drying at −180 deg C. for 13 hours to give raltegravir potassium amorphous form.