Patents by Inventor Raghupathi Reddy Anumula

Raghupathi Reddy Anumula 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).

  • Preparation of ticagrelor
    Patent number: 9233966
    Abstract: Provided are processes for preparing Ticagrelor and its intermediates that are useful in the processes. Also provided are salts of Ticagrelor, their processes and solid dispersion of Ticagrelor having Ticagrelor in amorphous form.
    Type: Grant
    Filed: April 5, 2013
    Date of Patent: January 12, 2016
    Assignee: DR. REDDY'S LABORATORIES LIMITED
    Inventors: Vilas Hareshwar Dahanukar, Goverdhan Gilla, Sreenivasulu Kurella, Shweta Mahajan Kulkarni, Raghupathi Reddy Anumula, Sampath Aalla, Yakambram Bojja, Ravi Ram Chandra Sekhar Elati, Veerender Murki, Venkata Annapurna Sasikala Cheemalapati
  • PREPARATION OF TICAGRELOR
    Publication number: 20150073146
    Abstract: Provided are processes for preparing Ticagrelor and its intermediates that are useful in the processes. Also provided are salts of Ticagrelor, their processes and solid dispersion of Ticagrelor having Ticagrelor in amorphous form.
    Type: Application
    Filed: April 5, 2013
    Publication date: March 12, 2015
    Inventors: Vilas Hareshwar Dahanukar, Goverdhan Gilla, Sreenivasulu Kurella, Shweta Mahajan Kulkarni, Raghupathi Reddy Anumula, Sampath Aalla, Yakambram Bojja, Ravi Ram Chandra Sekhar Elati, Veerender Murki, Venkata Annapurna Sasikala Cheemalapati
  • PREPARATION OF PRASUGREL HYDROCHLORIDE
    Publication number: 20130274284
    Abstract: The present application relates to process for the preparation of prasugrel, its pharmaceutically acceptable salts, and its intermediates.
    Type: Application
    Filed: August 2, 2011
    Publication date: October 17, 2013
    Applicants: DR. REDDY'S LABORATORIES, INC., Dr. Reddy's Laboratories Ltd.
    Inventors: Raghupathi Reddy Anumula, Goverdhan Gilla, Sampath Aalla, Dattatray Shamrao Metil, Srinivas Kurella, Kavitha Charagondla
  • 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
  • Process for preparation of celecoxib
    Patent number: 7919633
    Abstract: There is provided a process for preparation of celecoxib by reacting 4,4,4-trifluoro-1-[4-(methyl)phenyl]butane-1,3-dione with 4-sulphonamidophenylhydrazine or its salt in a solvent medium that contains an alkyl ester. There is also provided a process for the purification of celecoxib using aromatic hydrocarbon solvents.
    Type: Grant
    Filed: March 19, 2008
    Date of Patent: April 5, 2011
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Raghupathi Reddy Anumula, Goverdhan Gilla, Sampath Alla, Thirupathi Reddy Akki, Yakambram Bojja
  • Process for making crystalline form I of clopidogrel hydrogen sulphate
    Patent number: 7772398
    Abstract: A process for preparation of crystalline Form I of clopidogrel hydrogen sulphate, that include separating the crystalline Form I of clopidogrel hydrogen sulphate from a solution of clopidogrel freebase in a solvent, which is 2-propanol or 2-butanol is provided.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: August 10, 2010
    Assignees: Dr. Reddy's Laboratories, Inc., Dr. Reddy's Laboratories Limited
    Inventors: Eswaraiah Sajja, Raghupathi Reddy Anumula, Bhaskara rao Venkata Uppala
  • PROCESSES FOR PREPARING ZAFIRLUKAST
    Publication number: 20090149662
    Abstract: An improved process for the preparation of substantially pure zafirlukast and pharmaceutical compositions thereof.
    Type: Application
    Filed: December 4, 2008
    Publication date: June 11, 2009
    Inventors: Raghupathi Reddy Anumula, Goverdhan Gilla, Sampath Alla, Sreenivasulu Kurella, Janardana Sarma Ramachandra Kopparapu, Rama Krishna Venkata Medisetti, Srinivasula Reddy Maddula
  • 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 PREPARATION OF CELECOXIB
    Publication number: 20080234491
    Abstract: There is provided a process for preparation of celecoxib by reacting 4,4,4-trifluoro-1-[4-(methyl)phenyl]butane-1,3-dione with 4-sulphonamidophenylhydrazine or its salt in a solvent medium that contains an alkyl ester. There is also provided a process for the purification of celecoxib using aromatic hydrocarbon solvents.
    Type: Application
    Filed: March 19, 2008
    Publication date: September 25, 2008
    Inventors: Raghupathi Reddy Anumula, Goverdhan Gilla, Sampath Alla, Thirupathi Reddy Akki, Yakambram Bojja
  • 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