Patents by Inventor Esteban Masuda

Esteban Masuda 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).

  • Publication number: 20120232036
    Abstract: The present disclosure provides prodrugs of biologically active 2,4-pyrimidinediamine compounds, compositions comprising the prodrugs, intermediates and methods for synthesizing the prodrugs and methods of using the prodrugs in a variety of applications.
    Type: Application
    Filed: May 18, 2012
    Publication date: September 13, 2012
    Applicant: RIGEL PHARMACEUTICALS, INC.
    Inventors: Rajinder Singh, Somasekhar Bhamidipati, Esteban Masuda, Thomas Sun, Valentino J. Stella
  • Publication number: 20120208785
    Abstract: The present disclosure provides prodrugs of biologically active 2,4-pyrimidinediamine compounds, salts and hydrates of the prodrugs, compositions comprising the prodrugs, intermediates and methods for synthesizing the prodrugs and methods of using the prodrugs in a variety of applications.
    Type: Application
    Filed: March 12, 2012
    Publication date: August 16, 2012
    Applicant: RIGEL PHARMACEUTICALS, INC.
    Inventors: Somasekhar Bhamidipati, Rajinder Singh, Thomas Sun, Esteban Masuda
  • Patent number: 8227455
    Abstract: The present disclosure provides methods for the treatment of cell proliferative disorders by administration of a Syk kinase or Syk/Flt-3 kinase inhibitor. Cell proliferative disorders treatable by the methods include, hematopoietic neoplasms and virally associated tumors. The compounds are also directed to therapeutic or prophylactic inhibition of tumor metastasis.
    Type: Grant
    Filed: April 18, 2006
    Date of Patent: July 24, 2012
    Assignee: Rigel Pharmaceuticals, Inc.
    Inventors: Esteban Masuda, Donald G. Payan, Elliot B. Grossbard, Somasekhar Bhamidipati, Rajinder Singh
  • Patent number: 8211888
    Abstract: The present disclosure provides prodrugs of biologically active 2,4-pyrimidinediamine compounds, compositions comprising the prodrugs, intermediates and methods for synthesizing the prodrugs and methods of using the prodrugs in a variety of applications.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: July 3, 2012
    Assignee: Rigel Pharmaceuticals, Inc.
    Inventors: Rajinder Singh, Somasekhar Bhamidipati, Esteban Masuda, Thomas Sun, Valentino J. Stella
  • Patent number: 8163902
    Abstract: The present disclosure provides prodrugs of biologically active 2,4-pyrimidinediamine compounds, salts and hydrates of the prodrugs, compositions comprising the prodrugs, intermediates and methods for synthesizing the prodrugs and methods of using the prodrugs in a variety of applications.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: April 24, 2012
    Assignee: Rigel Pharmaceuticals, Inc.
    Inventors: Somasekhar Bhamidipati, Rajinder Singh, Thomas Sun, Esteban Masuda
  • Publication number: 20120022092
    Abstract: This disclosure concerns compounds which are useful as inhibitors of protein kinase C (PKC) and are thus useful for treating a variety of diseases and disorders that are mediated or sustained through the activity of PKC. This disclosure also relates to pharmaceutical compositions comprising these compounds, methods of using these compounds in the treatment of various diseases and disorders, processes for preparing these compounds and intermediates useful in these processes.
    Type: Application
    Filed: July 21, 2011
    Publication date: January 26, 2012
    Inventors: Sacha Holland, Rao Kolluri, Salvador Alvarez, Matthew Duncton, Rajinder Singh, Jing Zhang, Esteban Masuda
  • Publication number: 20120015937
    Abstract: The present disclosure provides compounds that inhibit protein kinases, such as JAK, Axl, or Syk kinases, compositions comprising the compounds and methods of using the compounds to inhibit protein kinase and treat and/or prevent diseases associated with inappropriate kinase activity.
    Type: Application
    Filed: September 23, 2011
    Publication date: January 19, 2012
    Applicant: RIGEL PHARMACEUTICALS, INC.
    Inventors: Pingyu Ding, Ankush Argade, Dane Goff, Rajinder Singh, Esteban Masuda, Vanessa Taylor, Sacha Holland
  • Publication number: 20110319613
    Abstract: The present disclosure provides prodrugs of biologically active 2,4-pyrimidinediamine compounds, compositions comprising the prodrugs, intermediates and methods for synthesizing the prodrugs and methods of using the prodrugs in a variety of applications.
    Type: Application
    Filed: June 30, 2011
    Publication date: December 29, 2011
    Applicant: RIGEL PHARMACEUTICALS, INC.
    Inventors: Rajinder Singh, Somasekhar Bhamidipati, Esteban Masuda, Thomas Sun, Valentino J. Stella
  • Patent number: 8053434
    Abstract: The present disclosure provides compounds that inhibit protein kinases, such as JAK, Axl, or Syk kinases, compositions comprising the compounds and methods of using the compounds to inhibit protein kinase and treat and/or prevent diseases associated with inappropriate kinase activity.
    Type: Grant
    Filed: September 1, 2009
    Date of Patent: November 8, 2011
    Assignee: Rigel Pharmaceuticals, Inc.
    Inventors: Pingyu Ding, Ankush Argade, Dane Goff, Rajinder Singh, Esteban Masuda, Vanessa Taylor, Sacha Holland
  • Patent number: 7989448
    Abstract: The present disclosure provides compounds of the following formula, and methods of using the compounds to inhibit cellular degranulation and to treat diseases associated therewith.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: August 2, 2011
    Assignee: Rigel Pharmaceuticals, Inc.
    Inventors: Rajinder Singh, Somasekhar Bhamidipati, Esteban Masuda
  • Publication number: 20110144059
    Abstract: The present disclosure provides prodrugs of biologically active 2,4-pyrimidinediamine compounds, salts and hydrates of the prodrugs, compositions comprising the prodrugs, intermediates and methods for synthesizing the prodrugs and methods of using the prodrugs in a variety of applications.
    Type: Application
    Filed: November 20, 2007
    Publication date: June 16, 2011
    Inventors: Somasekhar Bhamidipati, Rajinder Singh, Thomas Sun, Esteban Masuda
  • Patent number: 7915273
    Abstract: The invention encompasses compounds having formula I and the compositions and methods using these compounds in the treatment of conditions in which modulation of the JAK pathway or inhibition of JAK kinases, particularly JAK3, are therapeutically useful.
    Type: Grant
    Filed: February 24, 2010
    Date of Patent: March 29, 2011
    Assignee: Rigel Pharmaceuticals, Inc.
    Inventors: Ankush Argade, Arvinder Sran, David Carroll, Jeffrey Clough, Kin Tso, Somasekhar Bhamidipati, Sambaiah Thota, Rajinder Singh, Vanessa Taylor, Hui Li, Esteban Masuda
  • Publication number: 20110046126
    Abstract: Novel methods and compositions for the prevention and treatment of all forms of atherosclerosis with 2,4-pyrimidinediamine compounds are described. Also disclosed is the coating of prosthetic devices, such as stents, with the compounds of the invention for the prevention and/or treatment of restenosis.
    Type: Application
    Filed: February 20, 2009
    Publication date: February 24, 2011
    Applicant: RIGEL PHARMACEUTICALS, INC.
    Inventors: Esteban Masuda, Jochen Schmitz
  • Publication number: 20100179164
    Abstract: 2,4-Pyrimidinediamine compounds represented by formula (I), methods for preparing the same and methods for treating an inflammatory disorder and for inhibiting the production of IL-23 and/or stimulating the production of IL-10 using the same:
    Type: Application
    Filed: January 13, 2010
    Publication date: July 15, 2010
    Inventors: Hui Li, Esteban Masuda, Stephanie Yung, Taisei Kinoshita, Rongxian Ding, Rajinder Singh, Tarikere Gururaja, Donald G. Payan, Kin Tso
  • Publication number: 20100179165
    Abstract: Methods for treating an inflammatory disorder and for inhibiting the production of IL-23 using 2,4-pyrimidinediamine compounds represented by formula (I):
    Type: Application
    Filed: January 13, 2010
    Publication date: July 15, 2010
    Inventors: Tarikere Gururaja, Donald G. Payan, Kin Tso, Taisei Kinoshita, Rongxian Ding, Rajinder Singh, Stephanie Yung, Hui Li, Esteban Masuda
  • Publication number: 20100152218
    Abstract: The invention encompasses compounds having formula I and the compositions and methods using these compounds in the treatment of conditions in which modulation of the JAK pathway or inhibition of JAK kinases, particularly JAK3, are therapeutically useful.
    Type: Application
    Filed: February 24, 2010
    Publication date: June 17, 2010
    Applicant: RIGEL PHARMACEUTICALS, INC.
    Inventors: Ankush Argade, Arvinder Sran, David Carroll, Jeffrey Clough, Kin Tso, Somasekhar Bhamidipati, Sambaiah Thota, Rajinder Singh, Vanessa Taylor, Hui Li, Esteban Masuda
  • Publication number: 20100152172
    Abstract: The present invention provides 3-hydroxyphenyl-2,4-pyrimidinediamine compounds of formula I, as well as related compositions and methods for treating a variety of autoimmune diseases.
    Type: Application
    Filed: December 18, 2009
    Publication date: June 17, 2010
    Inventors: Jeffrey W. Clough, Somasekhar Bhamidipati, Rajinder Singh, Esteban Masuda, Haoran Zhao
  • Patent number: 7736846
    Abstract: The present invention relates to regulation of inflammation. More particularly, the present invention is directed to nucleic acids encoding components of the ubiquitin ligation pathway, e.g., ubiquitin and ubiquitin-like molecules, E1, E2, and E3 proteins and their substrates, which are involved in modulation of the inflammatory process. The invention further relates to methods for identifying and using agents, including small molecule chemical compositions, antibodies, peptides, cyclic peptides, nucleic acids, RNAi, antisense nucleic acids, and ribozymes, that modulate the inflammatory process via modulation of the ubiquitin ligation pathway; as well as to the use of expression profiles and compositions in diagnosis and therapy related to regulation of inflammation and modulation of cytokine signaling involved in inflammation, e.g., for treatment of infection, autoimmune disease and other diseases related to the inflammatory process.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: June 15, 2010
    Assignee: Rigel Pharmaceuticals, Inc.
    Inventors: Esteban Masuda, Brian Wong
  • Patent number: 7723018
    Abstract: The present invention relates to regulation of the cell cycle. More particularly, the present invention is directed to nucleic acids encoding components of the ubiquitin ligation pathway, e.g., ubiquitin and ubiquitin-like molecules, E1, E2, and E3 proteins and their substrates, which are involved in modulation of cell cycle arrest. The invention further relates to methods for identifying and using agents, including small molecule chemical compositions, antibodies, peptides, cyclic peptides, nucleic acids, RNAi, antisense nucleic acids, and ribozymes, that modulate cell cycle arrest via modulation of the ubiquitin ligation pathway; as well as to the use of expression profiles and compositions in diagnosis and therapy related to cell cycle regulation and modulation of cellular proliferation, e.g., for treatment of cancer and other diseases of cellular proliferation.
    Type: Grant
    Filed: August 28, 2003
    Date of Patent: May 25, 2010
    Assignee: Rigel Pharmaceuticals, Incorporated
    Inventors: Robert Booher, Esteban Masuda, Valeria Ossovskaya, Brian Wong
  • Publication number: 20100069369
    Abstract: The present disclosure provides compounds that inhibit protein kinases, such as JAK, Axl, or Syk kinases, compositions comprising the compounds and methods of using the compounds to inhibit protein kinase and treat and/or prevent diseases associated with inappropriate kinase activity.
    Type: Application
    Filed: September 1, 2009
    Publication date: March 18, 2010
    Applicant: RIGEL PHARMACEUTICALS, INC.
    Inventors: Pingyu Ding, Ankush Argade, Dane Goff, Rajinder Singh, Esteban Masuda, Vanessa Taylor, Sacha Holland