Patents by Inventor Bidyut Biswas

Bidyut Biswas 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 angiotensin receptor blockers or pharmaceutically acceptable salts thereof
    Publication number: 20230046186
    Abstract: The present invention relates to a process for the preparation of angiotensin receptor blockers or its pharmaceutically acceptable salts thereof containing less than 10 ppm of the azido impurities.
    Type: Application
    Filed: May 9, 2022
    Publication date: February 16, 2023
    Applicant: Jubilant Pharma Holdings Inc.
    Inventors: Saji Thomas, Rajendra Shekhawat, M. Umamaheshwar Prasad, Bidyut Biswas, Rohit Chakravarthy, Chetan Balubhai Patel, Anilkumar Haribhat Lingabhat, Mohan Chikmagalur Sadashivappa, Indranil Nandi
  • Preparation of angiotensin receptor blockers or pharmaceutically acceptable salts thereof
    Patent number: 11327065
    Abstract: The present invention relates to a process for the preparation of angiotensin receptor blockers or its pharmaceutically acceptable salts thereof containing less than 10 ppm of the azido impurities.
    Type: Grant
    Filed: August 27, 2021
    Date of Patent: May 10, 2022
    Inventors: Saji Thomas, Rajendra Shekhawat, M. Umamaheshwar Prasad, Bidyut Biswas, Rohit Chakravarthy, Chetan Balubhai Patel, Anilkumar Haribhat Lingabhat, Mohan Chikmagalur Sadashivappa, Indranil Nandi
  • Procedures for the synthesis of ethylenediamine bisborane and ammonia borane
    Patent number: 9534002
    Abstract: A method for synthesizing ammonia borane includes (a) preparing a reaction mixture in one or more solvents, the reaction mixture containing sodium borohydride, at least one ammonium salt, and ammonia; and (b) incubating the reaction mixture at temperatures between about 0° C. to about room temperature in an ambient air environment under conditions sufficient to form ammonia borane. Methods for synthesizing ethylenediamine bisborane, and methods for dehydrogenation of ethylenediamine bisborane are also described.
    Type: Grant
    Filed: July 6, 2011
    Date of Patent: January 3, 2017
    Assignee: PURDUE RESEARCH FOUNDATION
    Inventors: Padi Veeraraghavan Ramachandran, Pravin D. Gagare, Hitesh Mistry, Bidyut Biswas
  • Process for the preparation of aliskiren
    Patent number: 9056816
    Abstract: The present invention provides a novel process and novel intermediates useful in the synthesis of pharmaceutically active compounds, especially renin inhibitors, such as Aliskiren, or a salt thereof, preferably Aliskiren hemifumarate.
    Type: Grant
    Filed: October 19, 2012
    Date of Patent: June 16, 2015
    Assignee: JUBILANT LIFE SCIENCES LIMITED
    Inventors: Sujay Biswas, Sankareswaran Srimurugan, Anjul Kumar, Atulya Kumar Panda, Danish Jamshad, Mukesh Masand, Bidyut Biswas, Vikas Bansal, Ashish Kumar Gupta, Dharam Vir
  • PROCESS FOR THE PREPARATION OF ALISKIREN
    Publication number: 20140256963
    Abstract: The present invention provides a novel process and novel intermediates useful in the synthesis of pharmaceutically active compounds, especially renin inhibitors, such as Aliskiren, or a salt thereof, preferably Aliskiren hemifumarate.
    Type: Application
    Filed: October 19, 2012
    Publication date: September 11, 2014
    Inventors: Sujay Biswas, Sankareswaran Srimurugan, Anjul Kumar, Atulya Kumar Panda, Danish Jamshad, Mukesh Masand, Bidyut Biswas, Vikas Bansal, Ashish Kumar Gupta, Dharam Vir
  • Procedures for the Synthesis of Ethylenediamine Bisborane and Ammonia Borane
    Publication number: 20130225863
    Abstract: A method for synthesizing ammonia borane includes (a) preparing a reaction mixture in one or more solvents, the reaction mixture containing sodium borohydride, at least one ammonium salt, and ammonia; and (b) incubating the reaction mixture at temperatures between about 0° C. to about room temperature in an ambient air environment under conditions sufficient to form ammonia borane. Methods for synthesizing ethylenediamine bisborane, and methods for dehydrogenation of ethylenediamine bisborane are also described.
    Type: Application
    Filed: July 6, 2011
    Publication date: August 29, 2013
    Applicant: PURDUE RESEARCH FOUNDATION
    Inventors: Padi Veeraraghavan Ramachandran, Pravin D. Gagare, Hitesh Mistry, Bidyut Biswas