Patents by Inventor Sampad Bhattacharya

Sampad Bhattacharya 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).

  • Extended release formulation of venlafaxine hydrochloride
    Patent number: 7807195
    Abstract: The present invention relates to an extended release once daily pharmaceutical formulation comprising venlafaxine hydrochloride and pharmaceutically acceptable excipients. More particularly, the present invention relates to an extended release composition in the form of mini-tablets which are incorporated in hard gelatin capsules.
    Type: Grant
    Filed: January 7, 2005
    Date of Patent: October 5, 2010
    Assignee: Alembic Limited
    Inventors: Sampad Bhattacharya, Rajesh Kshirsagar, Mayank Joshi, Sandeep Pandita
  • Extended release osmo-microsealed formulation
    Publication number: 20070110808
    Abstract: The extended release osmo-microsealed formulation includes three controlled release systems associated in series. First, there is an inner solid particulate phase containing Venlafaxine Hydrochloride (Active), and one or more hydrophobic polymers, one or more diluents required to increase the bulk one or more osmogen (agents which can generate osmotic pressure across the hydrophobic coating) and one or more binder polymers essentially to provide strength/hardness to the particle. Second, there is an outer solid continuous phase including one or more hydrophilic polymers, that is further compressed into a tablet. Third, there is an optional functional coat surrounding the tablet. The process/method for forming the Osmo-microsealed extended release delivery system and the process for using such system for treating human ailment/depression are also provided.
    Type: Application
    Filed: May 14, 2004
    Publication date: May 17, 2007
    Applicant: ALEMBIC LIMITED
    Inventors: Sampad Bhattacharya, Sridhar Gummudavelli, Mayank Joshi, John Egbert
  • Extended release formulation of venlafaxine hydrochloride
    Publication number: 20050169985
    Abstract: The present invention relates to an extended release once daily pharmaceutical formulation comprising venlafaxine hydrochloride and pharmaceutically acceptable excipients. More particularly, the present invention relates to an extended release composition in the form of mini-tablets which are incorporated in hard gelatin capsules.
    Type: Application
    Filed: January 7, 2005
    Publication date: August 4, 2005
    Inventors: Sampad Bhattacharya, Rajesh Kshirsagar, Mayank Joshi, Sandeep Pandita