Patents by Inventor Kameswar R. Chivukula

Kameswar R. Chivukula 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 preparation of Darunavir
    Patent number: 10544157
    Abstract: The present invention provides a process for the preparation of darunavir or solvates or a pharmaceutically acceptable salt thereof substantially free of bisfuranyl impurities, particularly darunavir propionate solvate. The present invention also provides a process for preparation amorphous darunavir using the darunavir propionate solvate.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: January 28, 2020
    Assignee: LAURUS LABS LIMITED
    Inventors: Kameswar R. Chivukula, Venkata R. Murthy, Venkata S. Indukuri, Seeta R. Gorantla
  • PROCESS FOR PREPARATION OF DARUNAVIR
    Publication number: 20190144461
    Abstract: The present invention provides a process for the preparation of darunavir or solvates or a pharmaceutically acceptable salt thereof substantially free of bisfuranyl impurities, particularly darunavir propionate solvate. The present invention also provides a process for preparation amorphous darunavir using the darunavir propionate solvate.
    Type: Application
    Filed: January 10, 2019
    Publication date: May 16, 2019
    Inventors: Kameswar R. CHIVUKULA, Venkata R. MURTHY, Venkata S. INDUKURI, Seeta R. GORANTA
  • Process for preparation of Darunavir
    Patent number: 10214538
    Abstract: The present invention provides a process for the preparation of darunavir or solvates or a pharmaceutically acceptable salt thereof substantially free of bisfuranyl impurities, particularly darunavir propionate solvate. The present invention also provides a process for preparation amorphous darunavir using the darunavir propionate solvate.
    Type: Grant
    Filed: July 15, 2016
    Date of Patent: February 26, 2019
    Assignee: Laurus Labs Ltd.
    Inventors: Kameswar R. Chivukula, Venkata R. Murthy, Venkata S. Indukuri, Seeta R. Gorantla
  • Process for the preparation of Enzalutamide
    Patent number: 10131636
    Abstract: The present invention relates to an improved process for the preparation of enzalutamide by conventional synthesis, which avoids utilization of microwave irradiation and noxious reagents. The present invention also relates to an improved process for preparation of 4-isothiocyanato-2-(trifluoromethyl) benzonitrile, which is an intermediate in the synthesis of Enzalutamide.
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: November 20, 2018
    Assignee: Laurus Labs Limited
    Inventors: Kameswar R. Chivukula, Veera Venkateswara Rao Karuturi, Srinivas Benda, Ramachandra Anke, Dharmapuri Gajula, Venkata Rama Krishna Murthy Moturu, Venkata S. Indukuri, Seeta Ram Anjaneyulu Gorantla, Satyanarayana Chava
  • PROCESS FOR PREPARATION OF DARUNAVIR
    Publication number: 20160355525
    Abstract: The present invention provides a process for the preparation of darunavir or solvates or a pharmaceutically acceptable salt thereof substantially free of bisfuranyl impurities, particularly darunavir propionate solvate. The present invention also provides a process for preparation amorphous darunavir using the darunavir propionate solvate.
    Type: Application
    Filed: July 15, 2016
    Publication date: December 8, 2016
    Inventors: KAMESWAR R. CHIVUKULA, Venkata R. MURTHY, Venkata S. INDUKURI, Seeta R. GORANTLA
  • Process for preparation of Darunavir
    Patent number: 9475821
    Abstract: Provided are a process for preparation of darunavir or solvates or a pharmaceutically acceptable salt thereof substantially free of bisfuranyl impurities and a process for preparation of amorphous darunavir using the darunavir propionate solvate.
    Type: Grant
    Filed: July 23, 2013
    Date of Patent: October 25, 2016
    Assignee: Laurus Labs Private Limited
    Inventors: Kameswar R. Chivukula, Venkata R. Murthy, Venkata S. Indukuri, Seeta R. Gorantla
  • PROCESS FOR PREPARATION OF DARUNAVIR
    Publication number: 20150203506
    Abstract: Provided are a process for preparation of darunavir or solvates or a pharmaceutically acceptable salt thereof substantially free of bisfuranyl impurities and a process for preparation of amorphous darunavir using the darunavir propionate solvate.
    Type: Application
    Filed: July 23, 2013
    Publication date: July 23, 2015
    Inventors: Kameswar R. Chivukula, Venkata R. Murthy, Venkata S. Indukuri, Seeta R. Gorantla