Patents by Inventor Rajeswar Reddy Sagyam

Rajeswar Reddy Sagyam 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 fingolimod and its salts
    Patent number: 9216943
    Abstract: The present application provide processes for the preparation of fingolimod and its pharmaceutically acceptable salts, process for the purification of fingolimod hydrochloride and process for the preparation of amorphous fingolimod hydrochloride.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: December 22, 2015
    Assignee: DR. REDDY'S LABORATORIES LTD.
    Inventors: Srinivas Katkam, Rajeswar Reddy Sagyam, Raghavendar Rao Morthala, Babu Ireni, Krishna Vinigari, Suresh Kumar Ramdoss, Srinivasulu Rangineni, Arjunkumar Tummala, Javed Iqbal, Srinivas Oruganti, Bhaskar Kandagatla
  • PREPARATION OF FINGOLIMOD AND ITS SALTS
    Publication number: 20140235895
    Abstract: The present application provide processes for the preparation of fingolimod and its pharmaceutically acceptable salts, process for the purification of fingolimod hydrochloride and process for the preparation of amorphous fingolimod hydrochloride.
    Type: Application
    Filed: April 27, 2012
    Publication date: August 21, 2014
    Applicant: DR. REDDY'S LABORATORIES LTD.
    Inventors: Srinivas Katkam, Rajeswar Reddy Sagyam, Raghavendar Rao Morthala, Babu Ireni, Krishna Vinigari, Suresh Kumar Ramdoss, Srinivasulu Rangineni, Arjunkumar Tummala, Javed Iqbal, Srinivas Oruganti, Bhaskar Kandagatla
  • PREPARATION OF VALGANCICLOVIR AND ITS SALTS
    Publication number: 20110207931
    Abstract: The application relates to processes for preparing valganciclovir and pharmaceutically acceptable salts thereof, as well as intermediates for the processes. valganciclovir hydrochloride is represented by Formula II.
    Type: Application
    Filed: February 22, 2011
    Publication date: August 25, 2011
    Inventors: Srinivas Katkam, Rajeswar Reddy Sagyam, Madhusudhan Reddy Ganta, Babu Ireni, Srihari Babu Korrothu, Raghavendar Rao Morthala, Narsimha Rao Pagadala, Veera Venkata Satyanarayana Murthy Kondepudi
  • Crystalline forms VI and VII of Atorvastatin calcium
    Patent number: 7074818
    Abstract: The present invention relates to novel crystalline forms of atorvastatin calcium and to the methods of their production and isolation. More specifically, the present invention relates to novel Forms VI and VII of R—(R*,R*)]-2(4-fluorophenyl)-B,d dihydroxy-5(1-methylethyl)-3-phenyl-4-[(phenylamino)carbonyl]-1-H-pyrrole-1-heptanoic- acid calcium salt and hydrates thereof and to methods of their preparation.
    Type: Grant
    Filed: January 7, 2002
    Date of Patent: July 11, 2006
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Satyanarayana Reddy Manne, Nagaraju Chakilam, Srinivasulu Gudipati, Srinivas Katkam, Rajeswar Reddy Sagyam