Patents by Inventor Sudhir Singh Sanwal

Sudhir Singh Sanwal 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 MALIC ACID SALT OF SUNITINIB
    Publication number: 20160185760
    Abstract: The present invention relates to a process of preparation of malic acid salt of sunitinib.(I).
    Type: Application
    Filed: February 25, 2011
    Publication date: June 30, 2016
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Sudhir Singh SANWAL, Saridi Madhava Dileep KUMAR, Swargam SATHYANARAYANA, Rajesh Kumar THAPER, Mohan PRASAD
  • Process for the preparation of crystalline form I of methanesulfonate salt of dabigatran etexilate
    Patent number: 9150542
    Abstract: The present invention relates to a process for the preparation of crystalline Form I of methanesulfonate salt of dabigatran etexilate. (Formula (I)). The present invention does not require the isolation of the dabigatran etexilate intermediate.
    Type: Grant
    Filed: September 2, 2013
    Date of Patent: October 6, 2015
    Assignee: RANBAXY LABORATORIES LIMITED
    Inventors: Sudhir Singh Sanwal, Anandam Vempali, Balaguru Murugesan, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad
  • PROCESS FOR THE PREPARATION OF DABIGATRAN ETEXILATE OR PHARMACEUTICALLY ACCEPTABLE SALT THEREOF
    Publication number: 20150246899
    Abstract: The present invention relates to a process for the preparation of dabigatran etexilate. The present invention also relates to trifluoroacetate salt of dabigatran etexilate and a process for its preparation. The present invention further relates to crystalline Form I and crystalline Form II of trifluoroacetate salt of dabigatran etexilate and processes for their preparation. The present invention further relates to a process for the preparation of pharmaceutically acceptable salts, including methanesulfonate salt, of dabigatran etexilate.
    Type: Application
    Filed: September 30, 2013
    Publication date: September 3, 2015
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Anandam Vempali, Sudhir Singh Sanwal, Balaguru Murugesan, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad
  • PROCESS FOR THE PREPARATION OF DABIGATRAN ETEXILATE OR PHARMACEUTICALLY ACCEPTABLE SALT THEREOF
    Publication number: 20150225370
    Abstract: The present invention provides hydrobromide salt of dabigatran etexilate of formula (IV) and its process for the preparation. The present invention further provides crystalline Form I and crystalline Form II of hydrobromide salt of dabigatran etexilate and processes for their preparation. The present invention further relates to a process for the preparation of pharmaceutically ac ceptable salts, including methanesulfonate salt, of dabigatran etexilate using hydrobromide salt of dabigatran etexilate of the present invention.
    Type: Application
    Filed: September 30, 2013
    Publication date: August 13, 2015
    Inventors: Anandam Vempali, Sudhir Singh Sanwal, Balaguru Murugesan, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad
  • PROCESS FOR THE PREPARATION OF CRYSTALLINE FORM I OF METHANESULFONATE SALT OF DABIGATRAN ETEXILATE
    Publication number: 20150197504
    Abstract: The present invention relates to a process for the preparation of crystalline Form I of methanesulfonate salt of dabigatran etexilate. (Formula (I)). The present invention does not require the isolation of the dabigatran etexilate intermediate.
    Type: Application
    Filed: September 2, 2013
    Publication date: July 16, 2015
    Inventors: Sudhir Singh Sanwal, Anandam Vempali, Balaguru Murugesan, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad
  • Process for the preparation of crystalline form II of L-malic acid salt of sunitinib
    Patent number: 8916716
    Abstract: The present invention relates to stable crystalline Form II of L-malic acid salt of sunitinib and its preparation.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: December 23, 2014
    Assignee: Ranbaxy Laboratories Limited
    Inventors: Sudhir Singh Sanwal, Saridi Madhava Dileep Kumar, Swargam Sathyanarayana
  • CRYSTALLINE FORMS OF L-MALIC ACID SALT OF SUNITINIB
    Publication number: 20130210885
    Abstract: The present invention relates to crystalline forms of L-malic acid salt of sunitinib and its preparation. The crystalline forms of the present invention are designated as Form V and Form VI of L-malic acid salt of sunitinib. Formula (I).
    Type: Application
    Filed: January 28, 2011
    Publication date: August 15, 2013
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Sudhir Singh Sanwal, Saridi Madhava Dileep Kumar, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad
  • PROCESS FOR THE PREPARATION OF CRYSTALLINE FORM II OF L-MALIC ACID SALT OF SUNITINIB
    Publication number: 20130197242
    Abstract: The present invention relates to stable crystalline Form II of L-malic acid salt of sunitinib and its preparation.
    Type: Application
    Filed: November 19, 2010
    Publication date: August 1, 2013
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Sudhir Singh Sanwal, Saridi Madhava Dileep Kumar, Swargam Sathyanarayana
  • PROCESS FOR THE DIRECT PREPARATION OF MALIC ACID SALT OF SUNITINIB
    Publication number: 20130123511
    Abstract: The present invention relates to a process for the direct preparation of malic acid salt of sunitinib.
    Type: Application
    Filed: February 25, 2011
    Publication date: May 16, 2013
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Sudhir Singh Sanwal, Saridi Madhava Dileep Kumar, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad
  • PROCESS FOR THE PREPARATION OF CRYSTALLINE FORM I OF L-MALIC ACID SALT OF SUNITINIB
    Publication number: 20120271056
    Abstract: The present invention relates to a process for the preparation of crystalline Form I of the L-malic acid salt of sunitinib.
    Type: Application
    Filed: November 12, 2010
    Publication date: October 25, 2012
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Sudhir Singh Sanwal, Saridi Madhava Dileep Kumar, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad
  • SALTS OF SUNITINIB
    Publication number: 20120220783
    Abstract: The present invention relates to salts of sunitinib and their preparation.
    Type: Application
    Filed: September 16, 2010
    Publication date: August 30, 2012
    Applicant: RANBAXY LABORATORIES LIMITED
    Inventors: Sudhir Singh Sanwal, Saridi Madhava Dileep Kumar, Swargam Sathyanarayana, Rajesh Kumar Thaper, Mohan Prasad