Patents by Inventor Baldev Raj Bansal

Baldev Raj Bansal 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)
    Patent number: 7563911
    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: Grant
    Filed: August 31, 2001
    Date of Patent: July 21, 2009
    Assignee: Morepen Laboratories Ltd.
    Inventors: Sanjay Suri, Jujhar Singh, Gurdeep Singh Sarin, Baldev Raj Bansal