Patents by Inventor Srinivas Katkam

Srinivas Katkam 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 LIRAGLUTIDE
    Publication number: 20170283478
    Abstract: The present application relates to improved processes for the preparation of Liraglutide.
    Type: Application
    Filed: July 13, 2015
    Publication date: October 5, 2017
    Inventors: Sunil Kumar GANDAVADI, Sekhar NARIYAM MUNASWAMY, Karthik RAMASAMY, Rajiv Vishnukant THAKUR, Yagna Kiran Kumar KOMARAVOLU, Kishore Kumar MOVVA, Giri Babu NANDIVADA, Lavanya KOLA, Srinivas KATKAM
  • 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
  • Asenapine maleate
    Patent number: 8779161
    Abstract: Aspects of the present application relate to a microcrystalline monoclinic form of asenapine maleate represented by structural Formula (I); processes for its preparation; and pharmaceutically acceptable dosage forms thereof.
    Type: Grant
    Filed: June 16, 2011
    Date of Patent: July 15, 2014
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Srinivas Katkam, Srinivas Polavarapu, Venkata Madhavi Yaddanapudi, Krishna Vinigari, Narasimha Rao Pagadala, Rajeshwar Reddy Sagyam
  • ASENAPINE MALEATE
    Publication number: 20130211099
    Abstract: Aspects of the present application relate to a microcrystalline monoclinic form of asenapine maleate represented by structural Formula (I); processes for its preparation; and pharmaceutically acceptable dosage forms thereof.
    Type: Application
    Filed: June 16, 2011
    Publication date: August 15, 2013
    Applicants: DR. REDDY'S LABORATORIES, INC., DR. REDDY'S LABORATORIES LTD.
    Inventors: Srinivas Katkam, Srinivas Polavarapu, Venkata Madhavi Yaddanapudi, Krishna Vinigari, Narasimha Rao Pagadala, Rajeshwar Reddy Sagyam
  • PREPARATION OF CRYSTALLINE PALONOSETRON HYDROCHLORIDE
    Publication number: 20110213150
    Abstract: Processes for the preparation of palonosetron hydrochloride and its crystalline forms.
    Type: Application
    Filed: May 9, 2011
    Publication date: September 1, 2011
    Applicants: DR. REDDY'S LABORATORIES LTD., DR. REDDY'S LABORATORIES, INC.
    Inventors: Srinivas Katkam, Rajeshwar Reddy Sagyam, Vishnuvardhan Sunkara, Sridhar Munagala, Murali Mohan Muttavarapu
  • 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
  • PREPARATION OF ATORVASTATIN CALCIUM FORM VI AND COMPOSITIONS THEREOF
    Publication number: 20080051449
    Abstract: The present invention provides processes to prepare atorvastatin calcium Form VI, pharmaceutical compositions comprising atorvastatin calcium Form VI, and processes to prepare said compositions. An aspect of the invention relates to atorvastatin calcium Form VI compositions having enhanced bioavailability when administered orally to humans.
    Type: Application
    Filed: January 30, 2007
    Publication date: February 28, 2008
    Inventors: Sudeep Agrawal, Pratibha Bhat, Srinivasulu Gudipati, Srinivas Katkam, Satyanarayana Komati, Indu Bhushan, Mailatur Mohan
  • Amorphous Atorvastatin Calcium
    Publication number: 20080009540
    Abstract: Amorphous atorvastatin calcium having an enhanced stability contains about 2 to about 8 percent by weight water. A process for preparing the amorphous atorvastatin calcium and a packaging system for maintaining the stability are described.
    Type: Application
    Filed: September 29, 2005
    Publication date: January 10, 2008
    Inventors: Srinivasulu Gudipati, Srinivas Katkam, Satyanarayana Komati, Satyanarayana Kudavalli
  • PREPARATION OF ATORVASTATIN CALCIUM FORM I
    Publication number: 20070032665
    Abstract: A process for preparing atorvastatin calcium Form I, comprising adding a solution comprising atorvastatin calcium and an alcohol to water. Optionally, the water can contain seed crystals of atorvastatin calcium Form I.
    Type: Application
    Filed: August 3, 2006
    Publication date: February 8, 2007
    Inventors: Srinivasulu Gudipati, Srinivas Katkam, Satyanarayana Komati
  • Processes to produce intermediates for rosuvastatin
    Patent number: 7161004
    Abstract: Intermediate compounds for preparing rosuvastatin are prepared by a process comprising oxidizing hydroxy groups to aldehyde groups, using sodium hypochlorite and 2,2,6,6-tetramethyl piperidinyl oxy free radical (TEMPO) as a catalyst.
    Type: Grant
    Filed: June 21, 2005
    Date of Patent: January 9, 2007
    Assignees: Dr. Reddy's Laboratories Limited, Dr. Reddy's Laboratories, Inc.
    Inventors: Srinivasulu Gudipati, Srinivas Katkam, Rajeshwar Reddy Sagyam, Jaya Satyanaraya Kudavalli
  • 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
  • Processes to produce intermediates for rosuvastatin
    Publication number: 20060004200
    Abstract: Intermediate compounds for preparing rosuvastatin are prepared by a process comprising oxidizing hydroxy groups to aldehyde groups, using sodium hypochlorite and 2,2,6,6-tetramethyl piperidinyl oxy free radical (TEMPO) as a catalyst.
    Type: Application
    Filed: June 21, 2005
    Publication date: January 5, 2006
    Inventors: Srinivasulu Gudipati, Srinivas Katkam, Rajeshwar Sagyam, Jaya Kudavalli