Patents by Inventor Sagar Purushottam Nehate

Sagar Purushottam Nehate 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).

  • Polymorphic forms of pitavastatin sodium
    Patent number: 10259790
    Abstract: The present invention is directed to polymorphic forms of Pitavastatin sodium and processes for preparation of the same.
    Type: Grant
    Filed: April 6, 2018
    Date of Patent: April 16, 2019
    Assignee: LUPIN LIMITED
    Inventors: Narendra Dattatray Mane, Sagar Purushottam Nehate, Himanshu Madhav Godbole, Girij Pal Singh
  • PROCESS FOR THE PREPARATION OF PHOSPHATIDYLINOSITOL 3-KINASE INHIBITOR
    Publication number: 20190040066
    Abstract: The present invention relates to processes for the preparation of Phosphatidylinositol 3-Kinase Inhibitor (PI3K) compound of formula-1 via novel intermediates (I).
    Type: Application
    Filed: February 3, 2017
    Publication date: February 7, 2019
    Inventors: Sanket Pandurang Jadhav, Dipak Vasant Patil, Deepak Puna Mahajan, Sagar Purushottam Nehate, Himanshu Madhav Godbole, Girij Pal Singh
  • POLYMORPHIC FORMS OF PITAVASTATIN SODIUM
    Publication number: 20180273481
    Abstract: The present invention is directed to polymorphic forms of Pitavastatin sodium and processes for preparation of the same.
    Type: Application
    Filed: April 6, 2018
    Publication date: September 27, 2018
    Applicant: LUPIN LIMITED
    Inventors: Narendra Dattatray MANE, Sagar Purushottam NEHATE, Himanshu Madhav GODBOLE, Girij Pal SINGH
  • Polymorphic forms of pitavastatin sodium
    Patent number: 9969691
    Abstract: The present invention is directed to polymorphic forms of Pitavastatin sodium and processes for preparation of the same.
    Type: Grant
    Filed: July 8, 2015
    Date of Patent: May 15, 2018
    Assignee: LUPIN LIMITED
    Inventors: Narendra Dattatray Mane, Sagar Purushottam Nehate, Himanshu Madhav Godbole, Girij Pal Singh
  • POLYMORPHIC FORMS OF PITAVASTATIN SODIUM
    Publication number: 20170217894
    Abstract: The present invention is directed to polymorphic forms of Pitavastatin sodium and processes for preparation of the same.
    Type: Application
    Filed: July 8, 2015
    Publication date: August 3, 2017
    Inventors: Narendra Dattatray MANE, Sagar Purushottam NEHATE, Himanshu Madhav GODBOLE, Girij Pal SINGH
  • Process for the preparation of optically pure or optically enriched enantiomers of sulphoxide compounds
    Patent number: 8404853
    Abstract: A process for preparation of optically pure or optically enriched enantiomers of sulphoxide compounds of formula (I), such as omeprazole and structurally related compounds, as well as their salts and hydrates.
    Type: Grant
    Filed: October 5, 2006
    Date of Patent: March 26, 2013
    Assignee: Lupin Limited
    Inventors: Girij Pal Singh, Himanshu Madhav Godbole, Narotham Maddireddy, Suhas Ganpat Tambe, Sagar Purushottam Nehate, Harischandra Sambhaji Jadhav
  • Process for the preparation of cross-linked polyallylamine polymer
    Patent number: 8389640
    Abstract: A process for the polymerization of allylamine and its subsequent crosslinking in the presence of a dispersing agent.
    Type: Grant
    Filed: June 23, 2008
    Date of Patent: March 5, 2013
    Assignee: Lupin Limited
    Inventors: Girij Pal Singh, Himanshu Madhav Godbole, Umesh Babanrao Rananaware, Vinayak Ravindra Sathe, Sagar Purushottam Nehate
  • PROCESS FOR THE PREPARATION OF CROSS-LINKED POLYALLYLAMINE POLYMER
    Publication number: 20110028660
    Abstract: A process for the polymerization of allylamine and its subsequent crosslinking in the presence of a dispersing agent.
    Type: Application
    Filed: June 23, 2008
    Publication date: February 3, 2011
    Applicant: Lupin Limited
    Inventors: Girij Pal Singh, Himanshu Madhav Godbole, Umesh Babanrao Rananaware, Vinayak Ravindra Sathe, Sagar Purushottam Nehate
  • PROCESS FOR THE PREPARATION OF OPTICALLY PURE OR OPTICALLY ENRICHED ENANTIOMERS OF SULPHOXIDE COMPOUNDS
    Publication number: 20100160639
    Abstract: A process for preparation of optically pure or optically enriched enantiomers of sulphoxide compounds of formula (I), such as omeprazole and structurally related compounds, as well as their salts and hydrates.
    Type: Application
    Filed: October 5, 2006
    Publication date: June 24, 2010
    Applicant: Lupin Limited
    Inventors: Girij Pal Singh, Himanshu Madhav Godbole, Narotham Maddireddy, Suhas Ganpat Tambe, Sagar Purushottam Nehate, Harischandra Sambhaji Jadhav
  • Process for the purification of perindopril
    Patent number: 7728151
    Abstract: A dicyclohexyamine salt of compound of formula I, namely perindopril, having an X-ray powder diffraction pattern with characteristic peaks (2?): 8.462, 10.624, 18.693, 9.424, 17.272, 14.177, 19.499, 20.765, 21.409, and 14.540. A process for preparation of the said salt of perindopril and its use in the purification of an impure perindopril and a process for purification of perindropril comprising formation of its salt with dicyclohexylamine. The present invention also relates to preparation of Perindopril tert-butyl amine salt directly from Perindopril dicyclohexylamine salt without isolating the free base.
    Type: Grant
    Filed: June 9, 2005
    Date of Patent: June 1, 2010
    Assignee: Lupin Limited
    Inventors: Girij Pal Singh, Himanshu Madhav Godbole, Umesh Babanrao Rananaware, Vilas Nathu Dhake, Suhas Ganpat Tambe, Sagar Purushottam Nehate
  • Method for preparation of crystalline perindopril erbumine
    Patent number: 7456296
    Abstract: A process for preparation of crystalline perindopril erbumine of formula (II) which exhibits the X-ray (powder) diffraction pattern like that shown in FIG. 2 The process comprises reacting a solution of perindopril of formula (I), in a solvent selected from N,N-dimethylformamide, dimethyl acetals of lower aliphatic aldehydes, dimethyl ketals of lower aliphatic ketones and 1,2-dialkoxyethane with tertiary butylamine and crystallization of the erbumine salt thus obtained by heating the reaction mixture to reflux, filtering hot, cooling gradually to 20° C. to 30° C., and further cooling to 0° C. to 15° C. for 30 minutes to 1 hour and finally filtering off and drying the crystals.
    Type: Grant
    Filed: October 21, 2003
    Date of Patent: November 25, 2008
    Assignee: Lupin Ltd
    Inventors: Girij Pal Singh, Himanshu Madhav Godbole, Sagar Purushottam Nehate
  • Process for the Purification of Perindopril
    Publication number: 20080139823
    Abstract: A dicyclohexyamine salt of compound of formula I, namely perindopril, having an X-ray powder diffraction pattern with characteristic peaks (2?): 8.462, 10.624, 18.693, 9.424, 17.272, 14.177, 19.499, 20.765, 21.409, and 14.540. A process for preparation of the said salt of perindopril and its use in the purification of an impure perindopril and a process for purification of perindropril comprising formation of its salt with dicyclohexylamine. The present invention also relates to preparation of Perindopril tert-butyl amine salt directly from Perindopril dicyclohexylamine salt without isolating the free base.
    Type: Application
    Filed: June 9, 2005
    Publication date: June 12, 2008
    Applicant: Lupin Limited
    Inventors: Girij Pal Singh, Himanshu Madhav Godbole, Umesh Babanrao Rananaware, Vilas Nathu Dhake, Suhas Ganpat Tambe, Sagar Purushottam Nehate