Patents by Inventor Gona Bala Narsimha Reddy

Gona Bala Narsimha Reddy 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 Lorcaserin hydrochloride
    Patent number: 10308611
    Abstract: The present invention provides a process for the preparation of crystalline Lorcaserin hydrochloride hemihydrate of Formula (Ia), which comprises, Formula (Ia) (i) providing a solution of Lorcaserin base in a solvent; (ii) if water is present, removing water from the reaction mixture; (iii) adding hydrogen chloride to the reaction mixture; (iv) combining the reaction mixture with a suitable anti-solvent; and (v) isolating the crystalline Lorcaserin hydrochloride hemihydrate of Formula (Ia).
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: June 4, 2019
    Assignee: Aurobindo Pharma Ltd
    Inventors: Sukumar Nandi, Akkina Naresh, Syam Prasad Reddy Rao Annareddy, Gona Bala Narsimha Reddy, Meenakshi Sunderam Sivakumaran
  • A process for the preparation of Lorcaserin Hydrochloride
    Publication number: 20180194734
    Abstract: The present invention provides a process for the preparation of crystalline Lorcaserin hydrochloride hemihydrate of Formula (1a), which comprises, Formula (1a) (i) providing a solution of Lorcaserin base in a solvent; (ii) if water is present, removing water from the reaction mixture; (iii) adding hydrogen chloride to the reaction mixture; (iv) combining the reaction mixture with a suitable anti-solvent; and (v) isolating the crystalline Lorcaserin hydrochloride hemihydrate of Formula (1a).
    Type: Application
    Filed: March 18, 2016
    Publication date: July 12, 2018
    Applicant: Aurobindo Pharma Ltd
    Inventors: Sukumar Nandi, Akkina Naresh, Syam Prasad Reddy Rao Annareddy, Gona Bala Narsimha Reddy, Meenakshi Sunderam Sivakumaran