Patents by Inventor Tushar Anil Naik

Tushar Anil Naik 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 regadenoson and polymorphs thereof
    Patent number: 10815265
    Abstract: The present invention relates to a process for preparation of Regadenoson and polymorphs thereof. In particular, the present invention relates to a process for preparation of Regadenoson Form C.
    Type: Grant
    Filed: June 27, 2019
    Date of Patent: October 27, 2020
    Assignee: USV Private Limited
    Inventors: Laxmikant Narhari Patkar, Kamlesh Digambar Sawant, Harish Kashinath Mondkar, Tushar Anil Naik
  • PROCESS FOR PREPARATION OF REGADENOSON AND POLYMORPHS THEREOF
    Publication number: 20200002369
    Abstract: The present invention relates to a process for preparation of Regadenoson and polymorphs thereof. In particular, the present invention relates to a process for preparation of Regadenoson Form C.
    Type: Application
    Filed: June 27, 2019
    Publication date: January 2, 2020
    Inventors: Laxmikant Narhari Patkar, Kamiesh Digambar Savvant, Harish Kashinath Mondkar, Tushar Anil Naik
  • Process for preparation of Rasagiline and salts thereof
    Patent number: 8741962
    Abstract: The present invention relates to an improved process for the preparation of Rasagiline or pharmaceutically acceptable salts thereof. The present invention also relates to Rasagiline salts, polymorphs thereof and process for preparation thereof.
    Type: Grant
    Filed: November 24, 2010
    Date of Patent: June 3, 2014
    Assignee: USV Limited
    Inventors: Dhananjay Govind Sathe, Subhash Vishwanath Damle, Kamlesh Digambar Sawant, Parag Sukumar Gatne, Tushar Anil Naik
  • SITAGLIPTIN, SALTS AND POLYMORPHS THEREOF
    Publication number: 20130158265
    Abstract: The present invention relates to an improved process for preparation of Sitagliptin or pharmaceutically acceptable salts thereof. The present invention further relates to novel polymorphs of Sitagliptin salts and process for preparation thereof.
    Type: Application
    Filed: August 26, 2011
    Publication date: June 20, 2013
    Inventors: Dhananjay Govind Sathe, Subhash Vishwanath Damle, Nitin Dnyaneshwar Arote, Rakesh Ramchandra Ambre, Kamlesh Digambar Want, Tushar Anil Naik
  • CHLOROTHIAZIDE, CHLOROTHIAZIDE SALTS AND PHARMACEUTICAL COMPOSITIONS THEREOF
    Publication number: 20110263579
    Abstract: The present invention relates to an improved process for the preparation of Chlorothiazide and pharmaceutically acceptable salts thereof. The present invention relates to novel polymorphs of Chlorothiazide and Chlorothiazide salts, in particular Chlorothiazide sodium. The present invention further relates to pharmaceutical compositions comprising Chlorothiazide and Chlorothiazide salts, in particular Chlorothiazide sodium and process for preparation thereof.
    Type: Application
    Filed: April 21, 2011
    Publication date: October 27, 2011
    Applicant: USV Limited
    Inventors: Dhananjay Govind Sathe, Kamlesh Digambar Sawant, Tushar Anil Naik, Ashok Omray, Yogendra Madhav Agashe, Pragati Tukaram Patade, Sunil Suresh Jog
  • PROCESS FOR PREPARATION OF RASAGILINE AND SALTS THEREOF
    Publication number: 20110155626
    Abstract: The present invention relates to an improved process for the preparation of Rasagiline or pharmaceutically acceptable salts thereof. The present invention also relates to Rasagiline salts, polymorphs thereof and process for preparation thereof.
    Type: Application
    Filed: November 24, 2010
    Publication date: June 30, 2011
    Applicant: USV Limited
    Inventors: Dhananjay Govind Sathe, Subhash Vishwanath Damle, Kamlesh Digambar Sawant, Parag Sukumar Gatne, Tushar Anil Naik
  • Polymorphic Forms of Dolasetron Base and Processes of Preparing Dolasetron Base, Its Polymorphic Forms and Salt Thereof
    Publication number: 20080275241
    Abstract: The present disclosure relates to a process for the preparation of endo-hexahydro-8-(3-indolylcarbonyloxy)-2,6-methano-2H-quinolizin-3(4H)-one or Dolasetron base. It also discloses a process for the preparation of endo-hexahydro-8-(3-indolylcarbonyloxy)-2,6-methano-2H-quinolizin-3(4H)-one mesylate or Dolasetron mesylate. Further, the present disclosure relates to a process for producing Form I of Dolasetron base, and to the novel crystalline polymorphs, Form II, III, IV and V of Dolasetron base and industrial processes for producing them.
    Type: Application
    Filed: December 22, 2006
    Publication date: November 6, 2008
    Inventors: Venkatasubramanian Radhakrishnan Tarur, Dhananjay Govind Sathe, Nandu Baban Bhise, Kamlesh Digambar Sawant, Tushar Anil Naik, Neeraj Srivastav, Raviraj Bhatu Deore
  • Rapid resolution process of clopidogrel base and a process for preparation of clopidogrel bisulfate polymorph-form I
    Patent number: 7446200
    Abstract: The present invention discloses a rapid resolution process of racemic clopidogrel base followed by conversion of the resolved (S) isomer to crystalline Clopidogrel bisulfate Form I. The invention also discloses novel racemization process of the unwanted (R) isomer of clopidogrel base. The invention further discloses an improved process for preparation of acid addition salts of clopidogrel.
    Type: Grant
    Filed: June 10, 2005
    Date of Patent: November 4, 2008
    Assignee: USV, Ltd.
    Inventors: Manoj Madhukarrao Deshpande, V. R. Tarur, Dhananjay Govind Sathe, Harish Kashniath Mondkar, Kamlesh Digambar Sawant, Tushar Anil Naik
  • Novel pharmaceutical salts of 1-benzyl-4-[ (5,6-dimethoxy-1-indanone)-2-yl] methyl piperidine ( Donepezil)
    Publication number: 20080076928
    Abstract: New salts of donepezil, and new polymorphic forms of donepezil and its salts, and methods to prepare both the amorphous form and various polymorphic forms of donepezil or its salts.
    Type: Application
    Filed: April 27, 2006
    Publication date: March 27, 2008
    Inventors: Venkatasubramanian Radhakrishnan Tarur, Dhanajay Govind Sathe, Avinash Vankatraman Naidu, Kamiesh Digamber Sawant, Tushar Anil Naik, Umesh Parashram Aher, Sachin Shivali Patil
  • Process for preparing 5,6-dihydro-4-(S)-(ethylamino)-6-(S) methyl-4H-thieno[2,3b]thiopyran-2-sulphonamide-7,7-dioxide HCl
    Patent number: 7109353
    Abstract: The present invention relates to an improved process for the preparation of 5,6-dihydro-4-(S)-(ethylamino)-6-(S)methyl-4H-thieno[2,3b]thiopyran-2-sulphonamide-7,7-dioxide hydrochloride of formula (I) commonly known as Dorzolamide Hydrochloride useful as an agent to reduce intraoccular pressure by inhibiting carbonic anhydrase enzyme
    Type: Grant
    Filed: December 28, 2004
    Date of Patent: September 19, 2006
    Assignee: Council of Scientific and Industrial Research
    Inventors: Mukund Keshao Gurjar, Madhusudan Nagorao Deshmukh, Vincent Paul, Venkatasubramaniam Radhakrishnan Tarur, Dhananjay Govind Sathe, Santosh Pratap Pardeshi, Sanjay Janardhan Naik, Tushar Anil Naik
  • Rapid resolution process of clopidogrel base and a process for preparation of clopidogrel bisulfate polymorph-form I
    Publication number: 20060074242
    Abstract: The present invention discloses a rapid resolution process of racemic clopidogrel base followed by conversion of the resolved (S) isomer to crystalline Clopidogrel bisulfate Form I. The invention also discloses novel racemization process of the unwanted (R) isomer of clopidogrel base. The invention further discloses an improved process for preparation of acid addition salts of clopidogrel.
    Type: Application
    Filed: June 10, 2005
    Publication date: April 6, 2006
    Inventors: Manoj Madhukarrao Deshpande, V.R. Tarur, Dhananjay Govind Sathe, Harish Kashniath Mondkar, Kamlesh Sawant, Tushar Anil Naik