Patents by Inventor S. Sarin

S. Sarin has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Process for the preparation of amorphous atorvastin calcium salt (2:1)
    Publication number: 20050119493
    Abstract: Improved process for the preparation of amorphous atorvastatin calcium salt (2:1) comprises hydrolyzing the lactone form of atorvastatin of formula of FIG. 1 with aqueous alkali or alkaline earth metal base, extracting with organic solvent the reaction mixture and adding the same to an anti-solvent to precipitate the product and finally filtering the product to afford amorphous atorvastatin calcium (2:1). The process also comprises the preparation of amorphous atorvastatin calcium salt (2:1) from its crystalline form.
    Type: Application
    Filed: August 31, 2001
    Publication date: June 2, 2005
    Inventors: Sanjay Suri, J. Singh, S. Sarin, R. Bansal