Patents by Inventor Jeffrey Ravetch

Jeffrey Ravetch 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: 20220162290
    Abstract: The invention provides a polypeptide containing at least one IgG Fc region, wherein said at least one IgG Fc region is glycosylated with at least one galactose moiety connected to a respective terminal sialic acid moiety by a ? 2,6 linkage, and wherein said polypeptide having a higher anti-inflammatory activity as compared to an unpurified antibody.
    Type: Application
    Filed: November 24, 2021
    Publication date: May 26, 2022
    Inventors: Jeffrey Ravetch, Falk Nimmerjahn, Yoshikatsu Kaneko
  • Publication number: 20210101961
    Abstract: The invention provides a polypeptide containing at least one IgG Fc region, wherein said at least one IgG Fc region is glycosylated with at least one galactose moiety connected to a respective terminal sialic acid moiety by a ?2,6 linkage, and wherein said polypeptide having a higher anti-inflammatory activity as compared to an unpurified antibody.
    Type: Application
    Filed: December 14, 2020
    Publication date: April 8, 2021
    Inventors: Jeffrey Ravetch, Falk Nimmerjahn, Yoshikatsu Kaneko
  • Publication number: 20190127446
    Abstract: The invention provides a polypeptide containing at least one IgG Fc region, wherein said at least one IgG Fc region is glycosylated with at least one galactose moiety connected to a respective terminal sialic acid moiety by a ?2,6 linkage, and wherein said polypeptide having a higher anti-inflammatory activity as compared to an unpurified antibody.
    Type: Application
    Filed: January 10, 2019
    Publication date: May 2, 2019
    Inventors: Jeffrey Ravetch, Falk Nimmerjahn, Yoshikatsu Kaneko
  • Publication number: 20190106496
    Abstract: A mammalian C-type lectin receptor type is identified which is shown to bind IgG antibodies or Fc fragments, thus inducing IVIG-related reversal of inflammation associated with various immune disorders. The identification of a DC-SIGN receptor type which interacts with IgG to promote a biological response reducing inflammation associated with immune disorders provides for methods of screening and selecting compounds which may be useful in treating various immune disorders by acting to modulate a DC-SIGN(+) cell to signal a second effector macrophage, causing an increase in expression of the Fc?RIIB receptor and in turn inhibiting a cellular-mediated inflammatory response.
    Type: Application
    Filed: October 15, 2018
    Publication date: April 11, 2019
    Inventors: Jeffrey Ravetch, Robert M. Anthony
  • Publication number: 20190031737
    Abstract: The invention provides a polypeptide containing at least one IgG Fc region, wherein said at least one IgG Fc region is glycosylated with at least one galactose moiety connected to a respective terminal sialic acid moiety by a ? 2,6 linkage, and wherein said polypeptide having a higher anti-inflammatory activity as compared to an unpurified antibody.
    Type: Application
    Filed: September 28, 2018
    Publication date: January 31, 2019
    Inventors: Jeffrey Ravetch, Falk Nimmerjahn, Yoshikatsu Kaneko
  • Publication number: 20180125887
    Abstract: This invention concerns anti-inflammatory agents and methods for treating inflammatory disorders. Also disclosed are methods for identifying or evaluating anti-inflammatory agents or compositions.
    Type: Application
    Filed: November 14, 2017
    Publication date: May 10, 2018
    Inventors: Jeffrey Ravetch, Robert Anthony, Toshihiko Kobayashi, Fredrik Wermeling
  • Publication number: 20170320935
    Abstract: The invention provides a polypeptide containing at least one IgG Fc region, wherein said at least one IgG Fc region is glycosylated with at least one galactose moiety connected to a respective terminal sialic acid moiety by a ? 2,6 linkage, and wherein said polypeptide having a higher anti-inflammatory activity as compared to an unpurified antibody.
    Type: Application
    Filed: June 21, 2017
    Publication date: November 9, 2017
    Inventors: Jeffrey Ravetch, Falk Nimmerjahn, Yoshikatsu Kaneko
  • Publication number: 20170283492
    Abstract: The invention provides a polypeptide containing at least one IgG Fc region, wherein said at least one IgG Fc region is glycosylated with at least one galactose moiety connected to a respective terminal sialic acid moiety by a ? 2,6 linkage, and wherein said polypeptide having a higher anti-inflammatory activity as compared to an unpurified antibody.
    Type: Application
    Filed: June 21, 2017
    Publication date: October 5, 2017
    Inventors: Jeffrey Ravetch, Falk Nimmerjahn, Yoshikatsu Kaneko
  • Patent number: 9481724
    Abstract: Polypeptides that bind to DC-SIGN and/or its homologues and methods for using such peptides for the treatment of various disorders are described. DC-SIGN and its homologues are receptors that bind IgG antibodies or Fc fragments and mediate intravenous immunoglobulin (IVIG)-related reversal of inflammation associated with various immune disorders.
    Type: Grant
    Filed: December 10, 2012
    Date of Patent: November 1, 2016
    Assignees: The Rockefeller University, Sloan-Kettering Institute for Cancer Research
    Inventors: Jeffrey Ravetch, Andrew Pincetic, Ping Wang, Sam Danishefsky
  • Publication number: 20160200817
    Abstract: A mammalian C-type lectin receptor type is identified which is shown to bind IgG antibodies or Fc fragments, thus inducing IVIG-related reversal of inflammation associated with various immune disorders. The identification of a DC-SIGN receptor type which interacts with IgG to promote a biological response reducing inflammation associated with immune disorders provides for methods of screening and selecting compounds which may be useful in treating various immune disorders by acting to modulate a DC-SIGN(+) cell to signal a second effector macrophage, causing an increase in expression of the Fc?RIIB receptor and in turn inhibiting a cellular-mediated inflammatory response.
    Type: Application
    Filed: September 11, 2015
    Publication date: July 14, 2016
    Inventors: Jeffrey Ravetch, Robert M. Anthony
  • Publication number: 20160176950
    Abstract: The invention provides a polypeptide containing at least one IgG Fc region, wherein said at least one IgG Fc region is glycosylated with at least one galactose moiety connected to a respective terminal sialic acid moiety by a ?2,6 linkage, and wherein said polypeptide having a higher anti-inflammatory activity as compared to an unpurified antibody.
    Type: Application
    Filed: February 17, 2015
    Publication date: June 23, 2016
    Inventors: Jeffrey Ravetch, Falk Nimmerjahn, Yoshikatsu Kaneko
  • Publication number: 20150306139
    Abstract: This invention concerns anti-inflammatory agents and methods for treating inflammatory disorders. Also disclosed are methods for identifying or evaluating anti-inflammatory agents or compositions.
    Type: Application
    Filed: April 11, 2012
    Publication date: October 29, 2015
    Inventors: Jeffrey Ravetch, Robert Anthony, Toshihiko Kobayashi, Fredrik Wermeling
  • Publication number: 20150110807
    Abstract: Polypeptides that bind to DC-SIGN and/or its homologues and methods for using such peptides for the treatment of various disorders are described. DC-SIGN and its homologues are receptors that bind IgG antibodies or Fc fragments and mediate intravenous immunoglobulin (IVIG)-related reversal of inflammation associated with various immune disorders.
    Type: Application
    Filed: December 10, 2012
    Publication date: April 23, 2015
    Applicants: The Rockefeller University, Sloan-Kettering Institute for Cancer Research
    Inventors: Jeffrey Ravetch, Andrew Pincetic, Ping Wang, Sam Danishefsky
  • Patent number: 8815237
    Abstract: The present invention is based, in part, on our discovery of immunoglobulins (e.g., immunoglobulin G (IgG)) polypeptides (e.g., murine or human IgG, such as human IgG1) that are aglycosylated yet retain the ability to bind to an Fc receptor, such as an activating Fc receptor (e.g., Fc?RIIA and/or Fc?RIIIA).
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: August 26, 2014
    Assignees: Massachusetts Institute of Technology, The Rockefeller University
    Inventors: K. Dane Wittrup, Jeffrey Ravetch, Stephen Lael Sazinsky
  • Publication number: 20110059075
    Abstract: The present invention is based, in part, on our discovery of immunoglobulins (e.g., immunoglobulin G (IgG)) polypeptides (e.g., murine or human IgG, such as human IgG1) that are aglycosylated yet retain the ability to bind to an Fc receptor, such as an activating Fc receptor (e.g., Fcy RIIA and/or FcyRIIIA).
    Type: Application
    Filed: December 5, 2008
    Publication date: March 10, 2011
    Applicant: Massachusetts Institute of Technology
    Inventors: K. Dane Wittrup, Jeffrey Ravetch, Stephen Lael Sazinsky
  • Publication number: 20070014795
    Abstract: This invention relates to compositions comprising an agent, which inhibits signaling via the Fc?RIIB receptor and an agent which stimulates or enhances signaling via an Fc?RI receptor, an Fc?RIIa receptor, an Fc?RIII receptor, or a combination thereof. The invention also provides for the use of such compositions in stimulating or enhancing an immune response, and in treating, suppressing, or preventing cancer in a subject.
    Type: Application
    Filed: December 27, 2005
    Publication date: January 18, 2007
    Inventors: Madhav Dhodapkar, Jeffrey Ravetch, Ralph Steinman, Kavita Dhodapkar