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:
Apr. 01, 2014
Filed:
Jul. 27, 2012
Antone J Debettencourt, Iii, Westerly, RI (US);
Evgenyi Shalaev, Old Lyme, CT (US);
George J. Quallich, North Stonington, CT (US);
Carl B. Ziegler, Jr., East Lyme, CT (US);
Antone J deBettencourt, III, Westerly, RI (US);
Evgenyi Shalaev, Old Lyme, CT (US);
George J. Quallich, North Stonington, CT (US);
Carl B. Ziegler, Jr., East Lyme, CT (US);
Pfizer Inc., New York, NY (US);
Abstract
A process for forming amorphous atorvastatin comprising the steps of dissolving atorvastatin in a non-hydroxylic solvent and removing the solvent by freeze-drying, as well as processes of dissolving atorvastatin in a hydroxylic solvent with a solubilizing agent or an alkalizing agent or an antioxidant and removing the solvent by freeze-drying to afford amorphous atorvastatin.