Patents by Inventor Ravindra TIWARI

Ravindra TIWARI 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 SOLID DISPERSION OF LOPINAVIR AND RITONAVIR
    Publication number: 20140288108
    Abstract: An extrusion process for preparation of solid dispersion of lopinavir and ritonavir carried out in twin screw extruder.
    Type: Application
    Filed: November 28, 2012
    Publication date: September 25, 2014
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Ravindra Tiwari, Ravindra Agarwa, Janaki Raman Kailya, Ravi Kochhar
  • SOLID DOSAGE FORMS OF HIV PROTEASE INHIBITORS
    Publication number: 20110034489
    Abstract: The present invention relates to a solid dosage form comprising a solid dispersion composition of at least one HIV protease inhibitor and water soluble polymer having a glass transition temperature (Tg) of at least about 50° C. in an amount of less than 50% by weight of the dosage form. It also relates to a process of preparation of such solid dosage forms.
    Type: Application
    Filed: August 2, 2010
    Publication date: February 10, 2011
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Ravindra TIWARI, Kannayiram K. JANAKIRAMAN, Ravindra AGARWAL, Rajeev Singh RAGHUVANSHI