Patents by Inventor Samit Kumar Bhattacharya

Samit Kumar 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: 7928109
    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 17, 2008
    Date of Patent: April 19, 2011
    Assignee: Pfizer Inc
    Inventors: Michael Joseph Luzzio, Kevin Daniel Freeman-Cook, Samit Kumar Bhattacharya, Matthew Merrill Hayward, Catherine Angela Hulford, Christopher Lowell Autry, Xumiao Zhao, Jun Xiao, Kendra Louise Nelson
  • Patent number: 7820648
    Abstract: The present invention relates to a compound of the formula 1 or a pharmaceutically acceptable salt thereof, wherein Ar is a group of formula and R1, R2, R13, A, K, M, L1, L2, X, Y1, Y2, Q, salt thereof, wherein R1, R2, R13, A, K, L1, L2, W, X, Z1, Z2, Y1, Y2, Z1, Z2, M, Q, W, X, m, p and q are as defined herein. Such novel pyrimidine derivatives are useful in the treatment of abnormal cell growth, such as cancer, in mammals. The 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: December 20, 2006
    Date of Patent: October 26, 2010
    Assignees: Pfizer Inc, Pfizer Products Inc
    Inventors: Samit Kumar Bhattacharya, Michael Joseph Luzzio, Donn Gregory Wishka, Gonghua Pan, Arthur Douglas Brosius, Joel Thomas Arcari, James Alfred Southers, Jr., Kendra Louise Nelson, Jun Xiao
  • Publication number: 20100120794
    Abstract: The invention relates to compounds of formula I and to pharmaceutically acceptable salts, prodrugs, solvates or hydrates thereof; wherein B, D, E, R1, R2, R3, R4, R5, R8, m, n, p, q, r, s, t and u are as defined herein. 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: January 4, 2010
    Publication date: May 13, 2010
    Inventors: Samit Kumar Bhattacharya, Matthew Frank Brown, Peter Hans Dorff, Susan LaGreca
  • Publication number: 20090281073
    Abstract: This invention relates to compounds of Formula (I), and to pharmaceutically acceptable salts and solvates thereof, wherein Z, W, X, Y, V, R1, R2, and R3 are as defined herein. The invention also relates to methods of treating abnormal cell growth in mammals by administering the compounds of Formula (I) and to pharmaceutical compositions for treating such disorders which contain the compounds of Formula (I). The invention also relates to methods of preparing the compounds of Formula (I).
    Type: Application
    Filed: December 15, 2005
    Publication date: November 12, 2009
    Inventors: Samit Kumar Bhattacharya, Donna G. Wishka, Gonghua Pan
  • Patent number: 7585869
    Abstract: The invention relates to compounds of formula 1 and to pharmaceutically acceptable salts, prodrugs and solvates thereof, wherein R1, R3, R4, R11, N, Z, A, m and p are as defined herein. The invention also relates to methods of treating abnormal cell growth in mammals by administering the compounds of formula 1 and to pharmaceutical compositions for treating such disorders which contain the compounds of formula 1. The invention also relates to methods of preparing the compounds of formula 1.
    Type: Grant
    Filed: May 20, 2004
    Date of Patent: September 8, 2009
    Assignee: Pfizer, Inc.
    Inventors: Samit Kumar Bhattacharya, Jinshan Chen, Richard Damian Connell, John Charles Kath, Goss S. Kauffman, Blaise S. Lippa, Joel Morris
  • Publication number: 20090054395
    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 17, 2008
    Publication date: February 26, 2009
    Inventors: Michael Joseph Luzzio, Kevin Daniel Freeman-Cook, Samit Kumar Bhattacharya, Matthew Merrill Hayward, Catherine Angela Hulford, Christopher Lowell Autry, Xumiao Zhao, Jun Xiao, Kendra Louise Nelson
  • Patent number: 7332493
    Abstract: The invention relates to compounds of the formula 1 and to pharmaceutically acceptable salts, prodrugs and solvates thereof, wherein R1, R3, R4, R5, R11, m and p are as defined herein. The invention also relates to methods of treating abnormal cell growth in mammals by administering the compounds of formula 1 and to pharmaceutical compositions for treating such disorders which contain the compounds of formula 1. The invention also relates to methods of preparing the compounds of formula 1.
    Type: Grant
    Filed: March 14, 2005
    Date of Patent: February 19, 2008
    Assignee: OSI Pharmaceuticals
    Inventors: John Charles Kath, Joel Morris, Samit Kumar Bhattacharya
  • Patent number: 6890924
    Abstract: The invention relates to compounds of the formula 1 and to pharmaceutically acceptable salts, prodrugs and solvates thereof, wherein R1, R3, R4, R5, R11, m and p are as defined herein. The invention also relates to methods of treating abnormal cell growth in mammals by administering the compounds of formula 1 and to pharmaceutical compositions for treating such disorders which contain the compounds of formula 1. The invention also relates to methods of preparing the compounds of formula 1.
    Type: Grant
    Filed: June 18, 2001
    Date of Patent: May 10, 2005
    Assignee: Pfizer Inc
    Inventors: John Charles Kath, Joel Morris, Samit Kumar Bhattacharya
  • Patent number: 6867201
    Abstract: The invention relates to compounds of the formula 1 and to pharmaceutically acceptable salts and solvates thereof, wherein A, X, R1, R3 and R4 are as defined herein. The invention also relates to methods of treating abnormal cell growth in mammals by administering the compounds of formula 1 and to pharmaceutical compositions for treating such disorders which contain the compounds of formula 1. The invention also relates to methods of preparing the compounds of formula 1.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: March 15, 2005
    Assignee: Pfizer Inc
    Inventors: John Charles Kath, Norma Jacqueline Tom, Eric David Cox, Samit Kumar Bhattacharya
  • Publication number: 20040242604
    Abstract: The invention relates to compounds of formula 1 1
    Type: Application
    Filed: May 20, 2004
    Publication date: December 2, 2004
    Applicant: Pfizer Inc
    Inventors: Samit Kumar Bhattacharya, Jinshan Chen, Richard Damian Connell, John Charles Kath, Goss S. Kauffman, Blaise S. Lippa, Joel Morris
  • Publication number: 20030186995
    Abstract: The invention relates to compounds of the formula 1 1
    Type: Application
    Filed: January 21, 2003
    Publication date: October 2, 2003
    Applicant: Pfizer Inc.
    Inventors: John Charles Kath, Tom Norma Jacqueline, Liu Zhengyu, Eric David Cox, Joel Morris, Samit Kumar Bhattacharya
  • Patent number: 6541481
    Abstract: The invention relates to compounds of the formula 1 and to pharmaceutically acceptable salts and solvates thereof, wherein A, X, R1, R3 and R4 are as defined herein. The invention also relates to methods of treating abnormal cell growth in mammals with administering the compounds of formula 1 and to pharmaceutical compositions for treating such disorders which contain the compounds of formula 1. The invention also relates to methods of preparing the compounds of formula 1.
    Type: Grant
    Filed: April 12, 2001
    Date of Patent: April 1, 2003
    Assignee: Pfizer Inc
    Inventors: John Charles Kath, Norma Jacqueline Tom, Zhengyu Liu, Eric David Cox, Joel Morris, Samit Kumar Bhattacharya
  • Publication number: 20030055049
    Abstract: The invention relates to compounds of the formula 1 1
    Type: Application
    Filed: August 22, 2002
    Publication date: March 20, 2003
    Applicant: Pfizer Inc.
    Inventors: John Charles Kath, Norma Jacqueline Tom, Eric David Cox, Samit Kumar Bhattacharya
  • Publication number: 20020169165
    Abstract: The invention relates to compounds of the formula 1 1
    Type: Application
    Filed: June 18, 2001
    Publication date: November 14, 2002
    Inventors: John Charles Kath, Joel Morris, Samit Kumar Bhattacharya
  • Patent number: 6465449
    Abstract: The invention relates to compounds of the formula 1 and to pharmaceutically acceptable salts and solvates thereof, wherein A, X, R1, R3 and R4 are as defined herein. The invention also relates to methods of treating abnormal cell growth in mammals by administering the compounds of formula 1 and to pharmaceutical compositions for treating such disorders which contain the compounds of formula 1. The invention also relates to methods of preparing the compounds of formula 1.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: October 15, 2002
    Assignee: Pfizer Inc.
    Inventors: John Charles Kath, Norma Jacqueline Tom, Eric David Cox, Samit Kumar Bhattacharya
  • Publication number: 20010034351
    Abstract: The invention relates to compounds of the formula 1 1
    Type: Application
    Filed: April 12, 2001
    Publication date: October 25, 2001
    Inventors: John Charles Kath, Norma Jacqueline Tom, Zhengyu Liu, Eric David Cox, Joel Morris, Samit Kumar Bhattacharya
  • Patent number: 6284764
    Abstract: The invention relates to compounds of the formula 1 and to pharmaceutically acceptable salts and solvates thereof, wherein A, X, R1, R3 and R4 are as defined herein. The invention also relates to methods of treating abnormal cell growth in mammals with administering the compounds of formula 1 and to pharmaceutical compositions for treating such disorders which contain the compounds of formula 1. The invention also relates to methods of preparing the compounds of formula 1.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: September 4, 2001
    Assignee: Pfizer Inc.
    Inventors: John Charles Kath, Norma Jacqueline Tom, Zhengyu Liu, Eric David Cox, Joel Morris, Samit Kumar Bhattacharya