Patents by Inventor Mark D. Howell

Mark D. Howell 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: 11876798
    Abstract: A virtual delivery appliance may communicate with a client device over a network to provide the client device with a virtualized session for a user. A processor may be configured to communicate with the client device over the network to perform a registration operation with a relying party. An application within the virtualized session may perform an authentication operation with the relying party to access a resource. The processor may be configured to forward an authentication challenge message to the client device in response to the application receiving the authentication challenge message from the relying party for the user to access the resource, and receive an authentication answer message in response to the authentication challenge message from the client device.
    Type: Grant
    Filed: May 18, 2020
    Date of Patent: January 16, 2024
    Assignee: Citrix Systems, Inc.
    Inventors: Ashwin Suresh, Jason Vega Paez, Georgy Momchilov, Jayadev Marulappa Niranjanmurthy, Mark D. Howell
  • Publication number: 20200374284
    Abstract: A virtual delivery appliance may communicate with a client device over a network to provide the client device with a virtualized session for a user. A processor may be configured to communicate with the client device over the network to perform a registration operation with a relying party. An application within the virtualized session may perform an authentication operation with the relying party to access a resource. The processor may be configured to forward an authentication challenge message to the client device in response to the application receiving the authentication challenge message from the relying party for the user to access the resource, and receive an authentication answer message in response to the authentication challenge message from the client device.
    Type: Application
    Filed: May 18, 2020
    Publication date: November 26, 2020
    Inventors: Ashwin Suresh, Jason Vega Paez, Georgy Momchilov, Jayadev Marulappa Niranjanmurthy, Mark D. Howell
  • Publication number: 20170143889
    Abstract: An extracorporeal system for enhancing an immune response in a mammal to facilitate the elimination of a chronic pathology. The system includes an absorbent matrix capable of removing an immune system inhibitors such as soluble TNF receptor from the circulation of the mammal, thus, enabling a more vigorous immune response to the pathogenic agent. The removal of immune system inhibitors is accomplished by contacting biological fluids of a mammal with one or more binding partner(s) such as TNF-? muteins capable of binding to and, thus, depleting the targeted immune system inhibitor(s) from the biological fluids. The absorbent matrix may comprise an inert, biocompatible substrate joined covalently to a binding partner, such as a TNF-? mutein, capable of specifically binding to a targeted immune system inhibitor such as soluble TNF receptor.
    Type: Application
    Filed: August 2, 2013
    Publication date: May 25, 2017
    Inventor: Mark D. Howell
  • Patent number: 6221352
    Abstract: The present invention provides vaccines and a means of vaccinating a vertebrate so as to prevent or control specific T cell mediated pathologies, including autoimmune diseases and the unregulated replication of T cells. The vaccine is composed of a T cell receptor (TCR) or a fragment thereof corresponding to a TCR present on the surface of T cells mediating the pathology. The vaccine fragment can be a peptide corresponding to sequences of TCRs characteristic of the T cells mediating said pathology. Such a peptide can bind to conventional antigens completed to MHC antigen presenting cells or to superantigens. Means of determining appropriate amino acid sequences for such vaccines are also provided. The vaccine is administered to the vertebrate in a manner that induces an immune response directed against the TCR of T cells mediating the pathology. This immune response down regulates or deletes the pathogenic T cells, thus ablating the disease pathogenesis.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: April 24, 2001
    Assignee: The Immune Response Corporation
    Inventors: Mark D. Howell, Steven W. Brostoff, Dennis J. Carlo
  • Patent number: 6207645
    Abstract: The present invention provides vaccines and a means of vaccinating a vertebrate so as to prevent or control specific T cell mediated pathologies, including autoimmune diseases and the unregulated replication of T cells. The vaccine is composed of a T cell receptor (TCR) or a fragment thereof corresponding to a TCR present on the surface of T cells mediating the pathology. The vaccine fragment can be a peptide corresponding to sequences of TCRs characteristic of the T cells mediating said pathology. Such a peptide can bind to conventional antigens complexed to MHC antigen presenting cells or to superantigens. Means of determining appropriate amino acid sequences for such vaccines are also provided. The vaccine is administered to the vertebrate in a manner that induces an immune response directed against the TCR of T cells mediating the pathology. This immune response down regulates or deletes the pathogenic T cells, thus ablating the disease pathogenesis.
    Type: Grant
    Filed: July 18, 1994
    Date of Patent: March 27, 2001
    Assignee: The Immune Response Corporation
    Inventors: Mark D. Howell, Steven W. Brostoff, Dennis J. Carlo
  • Patent number: 6159470
    Abstract: The present invention provides vaccines and a means of vaccinating a mammal so as to prevent or control specific T cell mediated pathologies or to treat the unregulated replication of T cells. The vaccine is composed of a T cell receptor (TCR) or a fragment thereof corresponding to a TCR present on the surface of T cells mediating the pathology. The vaccine fragment can be a peptide corresponding to sequences of TCRs characteristic of the T cells mediating said pathology. Means of determining appropriate amino acid sequences for such vaccines are also provided. The vaccine is administered to the mammal in a manner that induces an immune response directed against the TCR of T cells mediating the pathology. This immune response down regulates or deletes the pathogenic T cells, thus ablating the disease pathogenesis. The invention additionally provides a specific .beta.-chain variable region of the T cell receptor, designated V.beta.17, which is central to the pathogenesis of rheumatoid arthritis (RA).
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: December 12, 2000
    Assignee: The Immune Response Corporation
    Inventors: Mark D. Howell, Steven W. Brostoff, Dennis J. Carlo
  • Patent number: 6090387
    Abstract: The present invention provides vaccines and a means of vaccinating a vertebrate so as to prevent or control specific T cell mediated pathologies, including autoimmune diseases and the unregulated replication of T cells. The vaccine is composed of a T cell receptor (TCR) or a fragment thereof corresponding to a TCR present on the surface of T cells mediating the pathology. The vaccine fragment can be a peptide corresponding to sequences of TCRs characteristic of the T cells mediating said pathology. Such a peptide can bind to conventional antigens completed to MHC antigen presenting cells or to superantigens. Means of determining appropriate amino acid sequences for such vaccines are also provided. The vaccine is administered to the vertebrate in a manner that induces an immune response directed against the TCR of T cells mediating the pathology. This immune response down regulates or deletes the pathogenic T cells, thus ablating the disease pathogenesis. The invention additionally provides specific .beta.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: July 18, 2000
    Assignee: The Immune Response Corporation
    Inventors: Mark D. Howell, Steven W. Brostoff, Dennis J. Carlo
  • Patent number: 6007815
    Abstract: The present invention provides vaccines and a means of vaccinating a host so as to prevent or control specific T cell mediated pathologies. The vaccine is composed of anti-idiotypic antibodies which are internal images of a segment of the T cell receptor (TCR) present on the surface of the pathogenic T cells. The vaccine is administered to the host in a manner that induces an immune response directed against the TCR of pathologic T cell. This immune response down regulates or deletes the pathogenic T cells, thus ablating the disease pathogenesis. Means of determining an appropriate amino acid sequence for such a vaccine are also provided.
    Type: Grant
    Filed: October 31, 1994
    Date of Patent: December 28, 1999
    Assignee: The Immune Response Corporation
    Inventors: Mark D. Howell, Steven W. Brostoff, Dennis J. Carlo
  • Patent number: 5985552
    Abstract: The present invention provides vaccines and a means of vaccinating a vertebrate so as to prevent or control specific T cell mediated pathologies, including autoimmune diseases and the unregulated replication of T cells. The vaccine is composed of a T cell receptor (TCR) or a fragment thereof corresponding to a TCR present on the surface of T cells mediating the pathology. The vaccine fragment can be a peptide corresponding to sequences of TCRs characteristic of the T cells mediating said pathology. Such a peptide can bind to conventional antigens completed to MHC antigen presenting cells or to superantigens. Means of determining appropriate amino acid sequences for such vaccines are also provided. The vaccine is administered to the vertebrate in a manner that induces an immune response directed against the TCR of T cells mediating the pathology. This immune response down regulates or deletes the pathogenic T cells, thus ablating the disease pathogenesis. The invention additionally provides specific .beta.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: November 16, 1999
    Assignee: The Immune Response Corporation
    Inventors: Mark D. Howell, Steven W. Brostoff, Dennis J. Carlo
  • Patent number: 5861164
    Abstract: The present invention provides vaccines and a means vaccinating a host so as to prevent or control specific T cell medicated proliferative diseases. The vaccine is composed of a pharmaceutically acceptable medium and a segment of the T cell receptor (TCR) present on the surface of the T cells mediating the disease. The vaccine is administered to the host in a manner that induces an immune response directed against the TCR of a pathologic T cell. This immune response down regulates or deletes the pathogenic T cells, thus ablating the disease pathogenesis. Means of determining an appropriate amino acid sequence for such a vaccine are also provided.
    Type: Grant
    Filed: November 1, 1993
    Date of Patent: January 19, 1999
    Assignee: The Immune Response Corporation
    Inventors: Mark D. Howell, Steven W. Brostoff, Dennis J. Carlo
  • Patent number: 5837246
    Abstract: The present invention provides vaccines and a means of vaccinating a mammal so as to prevent or control specific T cell mediated pathologies or to treat the unregulated replication of T cells. The vaccine is composed of a T cell receptor (TCR) or a fragment thereof corresponding to a TCR present on the surface of T cells mediating the pathology. The vaccine fragment can be a peptide corresponding to sequences of TCRs characteristic of the T cells mediating said pathology. Means of determining appropriate amino acid sequences for such vaccines are also provided. The vaccine is administered to the mammal in a manner that induces an immune response directed against the TCR of T cells mediating the pathology. This immune response down regulates or deletes the pathogenic T cells, thus ablating the disease pathogenesis. The invention additionally provides a specific .beta.-chain variable region of the T cell receptor, designated V.beta.17, which is central to the pathogenesis of rheumatoid arthritis (RA).
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: November 17, 1998
    Assignee: The Immune Response Corporation
    Inventors: Mark D. Howell, Steven W. Brostoff, Dennis J. Carlo
  • Patent number: 5612035
    Abstract: The present invention provides vaccines and a means of vaccinating a host so as to prevent or control specific T cell mediated pathologies. The vaccine is composed of a polypeptide whose amino acid sequence corresponds to a segment of the T cell receptor (TCR) present on the surface of the pathogenic T cells. The vaccine is administered to the host in a manner that induces an immune response directed against the TCR of pathologic T cells. This immune response down regulates or deletes the pathogenic T cells, thus ablating the disease pathogenesis. Means of determining an appropriate amino acid sequence for such a vaccine are also provided.
    Type: Grant
    Filed: August 6, 1993
    Date of Patent: March 18, 1997
    Assignee: The Immune Response Corporation
    Inventors: Mark D. Howell, Steven W. Brostoff, Dennis J. Carlo