Patents by Inventor Samit K. Bhattacharya

Samit K. Bhattacharya 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).

  • Patent number: 10450297
    Abstract: The present invention relates to a compound of the formula I wherein R1 to R6, A, B, n and m are as defined herein. Such novel sulfonyl amide derivatives are useful in the treatment of abnormal cell growth, such as cancer, in mammals. This invention also relates to a method of using such compounds in the treatment of abnormal cell growth in mammals, especially humans, and to pharmaceutical compositions containing such compounds.
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: October 22, 2019
    Assignee: Pfizer, Inc.
    Inventors: Michael J. Luzzio, Kevin D. Freeman-Cook, Samit K. Bhattacharya, Matthew M. Hayward, Catherine A. Hulford, Christopher L. Autry, Xumiao Zhao, Jun Xiao, Kendra L. Nelson
  • Publication number: 20190047979
    Abstract: The present invention relates to a compound of the formula I wherein R1 to R6, A, B, n and m are as defined herein. Such novel sulfonyl amide derivatives are useful in the treatment of abnormal cell growth, such as cancer, in mammals. This invention also relates to a method of using such compounds in the treatment of abnormal cell growth in mammals, especially humans, and to pharmaceutical compositions containing such compounds.
    Type: Application
    Filed: April 5, 2018
    Publication date: February 14, 2019
    Inventors: Michael J. Luzzio, Kevin D. Freeman-Cook, Samit K. Bhattacharya, Matthew M. Hayward, Catherine A. Hulford, Christopher L. Autry, Xumiao Zhao, Jun Xiao, Kendra L. Nelson
  • Publication number: 20170327485
    Abstract: The present invention relates to a compound of the formula I wherein R1 to R6, A, B, n and m are as defined herein. Such novel sulfonyl amide derivatives are useful in the treatment of abnormal cell growth, such as cancer, in mammals. This invention also relates to a method of using such compounds in the treatment of abnormal cell growth in mammals, especially humans, and to pharmaceutical compositions containing such compounds.
    Type: Application
    Filed: April 20, 2017
    Publication date: November 16, 2017
    Inventors: Michael J. Luzzio, Kevin D. Freeman-Cook, Samit K. Bhattacharya, Matthew M. Hayward, Catherine A. Hulford, Christopher L. Autry, Xumiao Zhao, Jun Xiao, Kendra L. Nelson
  • Publication number: 20140080756
    Abstract: The present invention provides a compound of Formula (I) a pharmaceutically salt thereof wherein R1, R2, Ra, L, Z, Z1 and Z2 are as defined herein, that act as Ghrelin antagonists or inverse agonists; pharmaceutical compositions thereof; and methods of treating diseases, disorders, or conditions mediated by the antagonism of the Ghrelin receptor.
    Type: Application
    Filed: November 18, 2013
    Publication date: March 20, 2014
    Applicant: Pfizer Inc.
    Inventors: Samit K. Bhattacharya, Kimberly O. Cameron, Dilinie P. Fernando, Kim F. McClure, Daniel W. Kung, Allyn T. Londregan, Suvi T.M. Orr
  • Patent number: 8609680
    Abstract: The present invention provides a compound of Formula (I) or a pharmaceutically salt thereof wherein R1, R2, Ra, L, Z, Z1 and Z2 are as defined herein, that act as Ghrelin antagonists or inverse agonists; pharmaceutical compositions thereof; and methods of treating diseases, disorders, or conditions mediated by the antagonism of the Ghrelin receptor.
    Type: Grant
    Filed: March 16, 2011
    Date of Patent: December 17, 2013
    Assignee: Pfizer Inc.
    Inventors: Samit K. Bhattacharya, Kimberly O. Cameron, Dilinie P. Fernando, Kim F. McClure, Daniel W. Kung, Allyn T. Londregan, Suvi T. M. Simila
  • Publication number: 20110230461
    Abstract: The present invention provides a compound of Formula (I) or a pharmaceutically salt thereof wherein R1, R2, Ra, L, Z, Z1 and Z2 are as defined herein, that act as Ghrelin antagonists or inverse agonists; pharmaceutical compositions thereof; and methods of treating diseases, disorders, or conditions mediated by the antagonism of the Ghrelin receptor.
    Type: Application
    Filed: March 16, 2011
    Publication date: September 22, 2011
    Inventors: Samit K. Bhattacharya, Kimberly O. Cameron, Dilinie P. Fernando, Kim F. McClure, Daniel W. Kung, Allyn T. Londregan, Suvi T. M. Simila
  • Publication number: 20100234435
    Abstract: The invention relates to compounds of formula I and to pharmaceutically acceptable salts, prodrugs, solvates or hydrates thereof. This invention also relates to a method of using such compounds in the treatment of hyperproliferative diseases and autoimmune diseases in mammals, especially humans, and to pharmaceutical compositions containing such compounds.
    Type: Application
    Filed: May 13, 2010
    Publication date: September 16, 2010
    Inventors: Samit K. Bhattacharya, Matthew F. Brown, Peter H. Dorff, Susan D. LaGreca, John W. Mickelson, Joseph A. Cornicelli, David L. Brown, Jennings Rex, John K. Walker, Rita Huff, Joseph W. Strohbach, Robert J. Maguire
  • Publication number: 20090227641
    Abstract: The invention relates to compounds of formula I and to pharmaceutically acceptable salts, prodrugs, solvates or hydrates thereof. This invention also relates to a method of using such compounds in the treatment of hyperproliferative diseases and autoimmune diseases in mammals, especially humans, and to pharmaceutical compositions containing such compounds.
    Type: Application
    Filed: November 7, 2008
    Publication date: September 10, 2009
    Inventors: Samit K. Bhattacharya, Matthew F. Brown, Peter H. Dorff, Susan D. LaGreca, John W. Mickelson, Joseph A. Cornicelli, David L. Brown, Rex Jennings, John K. Walker, Rita Huff, Joseph W. Strohbach, Robert J. Maguire
  • Patent number: 6927220
    Abstract: The invention relates to 6- or 7-bicyclic-substituted 4-amino-subsituted pyridopyrimidines and to pharmaceutically acceptable salts, prodrugs and hydrates thereof. The invention also relates to pharmaceutical compositions containing the compounds and to methods of treating hyperproliferative disorders abnormal cell growth in a mammal by administering the compounds.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: August 9, 2005
    Assignee: Pfizer Inc
    Inventors: Joel Morris, Samit K. Bhattacharya, John C. Kath
  • Publication number: 20030045535
    Abstract: The invention relates to 6- or 7-bicyclic-substituted 4-amino-subsituted pyridopyrimidines and to pharmaceutically acceptable salts, prodrugs and hydrates thereof. The invention also relates to pharmaceutical compositions containing the compounds and to methods of treating hyperproliferative disorders abnormal cell growth in a mammal by administering the compounds.
    Type: Application
    Filed: April 12, 2002
    Publication date: March 6, 2003
    Applicant: Pfizer Inc.
    Inventors: Joel Morris, Samit K. Bhattacharya, John C. Kath
  • Patent number: 6172205
    Abstract: This invention provides a process for the preparation of a Eleutherobin derivative of the formula: wherein R1 is a hydrogen, ester, nitrile or C2H4—R wherein R4 is a carbohydrate, an alcohol an amine, an amide, an alkyne, or, R2 is a linear or branched alkyl moiety, R3 is an ester, an amide, a carbamate, an acetal compound,an ether or a urethane, R4 is a hydrogen or CH2,position C2 and C3 is cis or trans,position C8 is &agr; or &bgr; and a compound is produced having the structures: Additionally, this experiment provides a method for inhibiting growth of cancerous cells comprising contracting an amount of Eleutherobin derivative effective to inhibit the growth of said cells. Further provided is a method for treating cancer in a subject which comprises administering to the subject a therapeutically effective amount of the Eleutherobin derivative.
    Type: Grant
    Filed: December 11, 1998
    Date of Patent: January 9, 2001
    Assignee: The Trustees of Columbia in the City of New York
    Inventors: Samuel J. Danishefsky, Xiao-Tao Chen, Clare E. Gutteridge, Samit K. Bhattacharya, Bishan Zhou