Patents by Inventor Nitin Sharad Chandra Pradhan

Nitin Sharad Chandra Pradhan 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).

  • Amorphous and crystalline forms of aprepitant and processes for the preparation thereof
    Patent number: 9227958
    Abstract: An amorphous form of aprepitant and a process for its preparation is provided. Also provided are mixtures of polymorph Forms I and II of aprepitant and a process for the preparation thereof.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: January 5, 2016
    Assignee: Glenmark Pharmaceuticals Limited
    Inventors: Mangesh Shivram Sawant, Girish Dixit, Nitin Sharad Chandra Pradhan, Mubeen Ahmad Khan, Sukumar Sinha
  • Process for the preparation of strontium ranelate
    Patent number: 8624041
    Abstract: A process for the preparation of strontium ranelate or a hydrate thereof is provided comprising (a) reacting a tetraester compound of Formula II: wherein R, R1, R2, and R3 are independently a linear or branched C1-C6 alkyl group or a substituted or unsubstituted C3-C12 cyclic group, in the presence of a lithium base and in a solvent with an inorganic acid salt of strontium.
    Type: Grant
    Filed: August 18, 2006
    Date of Patent: January 7, 2014
    Assignee: Glenmark Generics Ltd.
    Inventors: Bobba Venkata Siva Kumar, Kosampally Srinivas, Sanjay Anantha Kale, Nitin Sharad Chandra Pradhan
  • Polymorphic form of lercanidipine hydrochloride and process for the preparation thereof
    Patent number: 8097729
    Abstract: Processes for the purification of lercanidipine hydrochloride are provided which uses a binary system of an alcohol-containing solvent such as methanol and an aliphatic ester-containing solvent such as isopropyl acetate. Processes for the preparation of substantially amorphous lercanidipine hydrochloride are also provided. Also provided is lercanidipine hydrochloride substantially in polymorph form V.
    Type: Grant
    Filed: September 18, 2006
    Date of Patent: January 17, 2012
    Assignee: Glenmark Generics Ltd.
    Inventors: Mangesh Shivram Sawant, Maloyesh Mathuresh Biswas, Mubeen Ahmed Khan, Sukumar Sinha, Nitin Sharad Chandra Pradhan
  • Process for the preparation of an optically active 5H-pyrrolo [3,4-B] pyrazine derivative
    Patent number: 7863273
    Abstract: A substantially pure dextrorotatory isomer of zopiclone or a pharmaceutically acceptable salt thereof and crystalline forms thereof are provided. Also provided is a process for its preparation and pharmaceutical compositions containing same.
    Type: Grant
    Filed: December 29, 2006
    Date of Patent: January 4, 2011
    Assignee: Glenmark Generics Ltd.
    Inventors: Biju Kumar Gopinathen Pillai, Sankar Arjunan, Nitin Sharad Chandra Pradhan, Narendra Shriram Joshi
  • Process for the preparation of a crystalline form of (S)-N [[3-(3-fluoro-4(4-morpholinyl) phenyl]-2-oxo-5-oxazolidinyl] methyl] acetamide
    Patent number: 7649096
    Abstract: A process for preparing a crystalline form of linezolid is provided comprising (a) providing a solution comprising linezolid in an organic solvent having a boiling point of less than or equal to about 150° C.; (b) adding an anti-solvent having a boiling point greater than or equal to about 50° C. to the solution; and (c) recovering the crystalline form of linezolid.
    Type: Grant
    Filed: July 17, 2006
    Date of Patent: January 19, 2010
    Assignee: Glenmark Pharmaceuticals Limited
    Inventors: Bobba Venkata Siva Kumar, Pravin Bhalchandra Kulkarni, Girish Bansilal Patel, Nitin Sharad Chandra Pradhan
  • Esomeprazole Strontium Salt, Process For Its Preparation and Pharmaceutical Compositions Containing Same
    Publication number: 20090298884
    Abstract: A strontium salt of esomeprazole is provided. A process for preparing a strontium salt of esomeprazole is also provided comprising reacting esomeprazole free base or a sodium, potassium or lithium salt of esomeprazole with a strontium source in one or more solvents.
    Type: Application
    Filed: May 2, 2006
    Publication date: December 3, 2009
    Applicant: GLENMARK GENERICS LTD.
    Inventors: Shekhar Bhaskar Bhirud, Nitin Sharad Chandra Pradhan, Bobba Venkata Siva Kumar, Pravin Bhalchandra Kulkarni
  • Polymorphic Form of Lercanidipine Hydrochloride and Process for the Preparation Thereof
    Publication number: 20090221833
    Abstract: Processes for the purification of lercanidipine hydrochloride are provided which uses a binary system of an alcohol-containing solvent such as methanol and an aliphatic ester-containing solvent such as isopropyl acetate. Processes for the preparation of substantially amorphous lercanidipine hydrochloride are also provided. Also provided is lercanidipine hydrochloride substantially in polymorph form V.
    Type: Application
    Filed: September 18, 2006
    Publication date: September 3, 2009
    Inventors: Mangesh Shivram Sawant, Maloyesh Mathuresh Biswas, Mubeen Ahmed Khan, Sukumar Sinha, Nitin Sharad Chandra Pradhan
  • Process for the Preparation of Strontium Ranelate
    Publication number: 20090214631
    Abstract: A process for the preparation of strontium ranelate or a hydrate thereof is provided comprising (a) reacting a tetraester compound of Formula II: wherein R, R1, R2, and R3 are independently a linear or branched C1-C6 alkyl group or a substituted or unsubstituted C3-C12 cyclic group, in the presence of a lithium base and in a solvent with an inorganic acid salt of strontium.
    Type: Application
    Filed: August 18, 2006
    Publication date: August 27, 2009
    Inventors: Bobba Venkata Siva Kumar, Kosampally Srinivas, Sanjay Anantha Kale, Nitin Sharad Chandra Pradhan
  • Amorphous and Crystalline Forms of Aprepitant and Processes for the Preparation Thereof
    Publication number: 20090192161
    Abstract: An amorphous form of aprepitant and a process for its preparation is provided. Also provided are mixtures of polymorph Forms I and II of aprepitant and a process for the preparation thereof.
    Type: Application
    Filed: February 2, 2007
    Publication date: July 30, 2009
    Inventors: Mangesh Shivram Sawant, Girish Dixit, Nitin Sharad Chandra Pradhan, Mubeen Ahmad Khan, Sukumar Sinha
  • Process For The Preparation of an Optically Active 5H-Pyrrolo [3,4-B] Pyrazine Derivative
    Publication number: 20090054441
    Abstract: A substantially pure dextrorotatory isomer of zopiclone or a pharmaceutically acceptable salt thereof and crystalline forms thereof are provided. Also provided is a process for its preparation and pharmaceutical compositions containing same.
    Type: Application
    Filed: December 29, 2006
    Publication date: February 26, 2009
    Inventors: Biju Kumar Gopinathen Pillai, Sankar Arjunan, Nitin Sharad Chandra Pradhan, Narendra Shriram Joshi