Patents by Inventor Lokeswara Rao Madivada

Lokeswara Rao Madivada 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 MIDOSTAURIN
    Publication number: 20220242880
    Abstract: The present application relates to a process for the preparation of midostaurin by controlling critical impurities or by-products which in turn lead to increase in the overall yield and purity. The present application also provides midostaurin having less than 0.15% or substantially free or free of one or more impurities.
    Type: Application
    Filed: June 23, 2020
    Publication date: August 4, 2022
    Inventors: Swapna AKULA, Shravan Kumar KOMATI, Siva Reddy MAKIREDDY, Rajeev Rehani BUDHDEV, Sekhar Munaswamy NARIYAM, Lokeswara Rao MADIVADA
  • PURIFICATION PROCESS FOR PREPARATION OF ERIBULIN AND INTERMEDIATES THEREOF
    Publication number: 20210260023
    Abstract: The present application relate to a purification process for preparation of halichondrin B analogues such as eribulin or pharmaceutically acceptable salts thereof having less than 0.15% or substantially free or free from one or more impurities. The present application also provide acid addition salts of eribulin and process for preparation thereof.
    Type: Application
    Filed: July 19, 2019
    Publication date: August 26, 2021
    Inventors: Thomas MAHONEY, Pieter David DE KONING, Graham ANDREW MEEK, Srinivas ACHANTA, Rajeev Rehani BUDHDEV, Philip Mark JACKSON, Srinivas ORUGANTI, Lokeswara Rao MADIVADA
  • ENZALUTAMIDE POLYMORPHIC FORMS AND ITS PREPARATION
    Publication number: 20170267645
    Abstract: The present application relates to crystalline and amorphous forms of Enzalutamide. The present application further relates to amorphous solid dispersions of Enzalutamide with pharmaceutically acceptable carriers. The present application also relates to a process for the preparation of Form R1 of Enzalutamide.
    Type: Application
    Filed: June 1, 2017
    Publication date: September 21, 2017
    Inventors: Vishweshwar PEDDY, Rajesham BOGE, Lokeswara Rao MADIVADA
  • Enzalutamide polymorphic forms and its preparation
    Patent number: 9701641
    Abstract: The present application relates to crystalline and amorphous forms of Enzalutamide. The present application further relates to amorphous solid dispersions of Enzalutamide with pharmaceutically acceptable carriers. The present application also relates to a process for the preparation of Form R1 of Enzalutamide.
    Type: Grant
    Filed: October 13, 2016
    Date of Patent: July 11, 2017
    Assignee: DR. REDDY'S LABORATORIES LIMITED
    Inventors: Vishweshwar Peddy, Rajesham Boge, Lokeswara Rao Madivada
  • ENZALUTAMIDE POLYMORPHIC FORMS AND ITS PREPARATION
    Publication number: 20170029380
    Abstract: The present application relates to crystalline and amorphous forms of Enzalutamide. The present application further relates to amorphous solid dispersions of Enzalutamide with pharmaceutically acceptable carriers. The present application also relates to a process for the preparation of Form R1 of Enzalutamide.
    Type: Application
    Filed: October 13, 2016
    Publication date: February 2, 2017
    Inventors: Vishweshwar PEDDY, Rajesham BOGE, Lokeswara Rao MADIVADA
  • ENZALUTAMIDE POLYMORPHIC FORMS AND ITS PREPARATION
    Publication number: 20150239848
    Abstract: The present application relates to crystalline and amorphous forms of Enzalutamide. The present application further relates to amorphous solid dispersions of Enzalutamide with pharmaceutically acceptable carriers. The present application also relates to a process for the preparation of Form R1 of Enzalutamide.
    Type: Application
    Filed: September 11, 2013
    Publication date: August 27, 2015
    Inventors: Vishweshwar Peddy, Rajesham Boge, Lokeswara Rao Madivada
  • PREPARATION OF RANOLAZINE
    Publication number: 20110151258
    Abstract: Preparation of ranolazine and intermediates thereof, for use in pharmaceutical compositions comprising ranolazine.
    Type: Application
    Filed: February 28, 2011
    Publication date: June 23, 2011
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Raghupathi Reddy Anumula, Goverdhan Gilla, Sampath Aalla, Lokeswara Rao Madivada, Prabhaker Macherla, Srinivas Kurella, Kavitha Charagondla, Ramamurthy Kasula, Rajagopala Rao Mandadapu, Krishaniah Charagondla, Malati Vakamulla, Durga Prasad Janaki Bhavanipurapu
  • PROCESSES FOR PREPARING PIOGLITAZONE AND ITS PHARMACEUTICALLY ACCEPTABLE SALTS
    Publication number: 20090118514
    Abstract: An improved process for the preparation of pioglitazone and its pharmaceutically acceptable salts by reducing 5-[4-[2-(5-ethyl-2-pyridyl)ethoxy]benzilidene]-2,4-thiazolidinedione with sodium borohydride in presence of a cobalt ion and dimethyl glyoxime. More particularly the cobalt ion used is cobalt chloride hexahydrate, or, cobalt (II) nitrate hexahydrate in presence of mixture of DMF and water as solvents.
    Type: Application
    Filed: November 5, 2008
    Publication date: May 7, 2009
    Inventors: Raghupathi Reddy Anumula, Goverdhan Gilla, Lokeswara Rao Madivada, Prabhakar Macharla, Kavitha Charagondla
  • PROCESS FOR PREPARING CLOPIDOGREL
    Publication number: 20070225320
    Abstract: A process for preparing clopidogrel or a salt thereof.
    Type: Application
    Filed: March 26, 2007
    Publication date: September 27, 2007
    Inventors: Eswaraiah Sajja, Raghupathi Reddy Anumula, Goverdhan Gilla, Lokeswara Rao Madivada