Patents by Inventor C. Gregory Sowell

C. Gregory Sowell 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: 6764840
    Abstract: Aminoalkyl glucosaminide phosphate (AGP) compounds that are adjuvants and immunoeffectors are described and claimed. The compounds have a 2-deoxy-2-amino glucose in glycosidic linkage with an aminoalkyl (aglycon) group. Compounds are phosphorylated at the 4 or 6 carbon on the glucosaminide ring and comprise three 3-alkanoyloxyalkanoyl residues. The compounds augment antibody production in immunized animals as well as stimulate cytokine production and activate macrophages. Methods for using the compounds as adjuvants and immunoeffectors are also disclosed.
    Type: Grant
    Filed: July 12, 2001
    Date of Patent: July 20, 2004
    Assignee: Corixa Corporation
    Inventors: David A. Johnson, C. Gregory Sowell
  • Publication number: 20040033213
    Abstract: The present invention relates to a method for culturing large amounts of antigen presenting cells, in particular of proliferating dendritic cell precursors, and of inducing their maturation ex vivo to mature dendritic cells. In addition, the present invention is directed to antigen-activated dendritic cells and provides methods of using such activated dendritic to elicit an immune response in a patient.
    Type: Application
    Filed: February 28, 2003
    Publication date: February 19, 2004
    Applicant: Corixa Corporation
    Inventors: Edwin Walker, C. Gregory Sowell
  • Patent number: 6667300
    Abstract: Methods of inhibiting phosphatidylinositol 3-kinase delta isoform (PI3K&dgr;) activity, and methods of treating diseases, such as disorders of immunity and inflammation, in which PI3K&dgr; plays a role in leukocyte function are disclosed. Preferably, the methods employ active agents that selectively inhibit PI3K&dgr;, while not significantly inhibiting activity of other PI3K isoforms. Compounds are provided that inhibit PI3K&dgr; activity, including compounds that selectively inhibit PI3K&dgr; activity. Methods of using PI3K&dgr; inhibitory compounds to inhibit cancer cell growth or proliferation are also provided. Accordingly, the invention provides methods of using PI3K&dgr; inhibitory compounds to inhibit PI3K&dgr;-mediated processes in vitro and in vivo.
    Type: Grant
    Filed: October 19, 2001
    Date of Patent: December 23, 2003
    Assignee: ICOS Corporation
    Inventors: Chanchal Sadhu, Ken Dick, Jennifer Treiberg, C. Gregory Sowell, Edward A. Kesicki, Amy Oliver
  • Publication number: 20030199460
    Abstract: Aminoalkyl glucosaminide phosphate (AGP) compounds that are adjuvants and immunoeffectors are described and claimed. The compounds have a 2-deoxy-2-amino glucose in glycosidic linkage with an aminoalkyl (aglycon) group. Compounds are phosphorylated at the 4 or 6 carbon on the glucosaminide ring and comprise three 3-alkanoyloxyalkanoyl residues. The compounds augment antibody production in immunized animals as well as stimulate cytokine production and activate macrophages. Compositions and methods for using the compounds as adjuvants and immunoeffectors are also disclosed.
    Type: Application
    Filed: April 30, 2002
    Publication date: October 23, 2003
    Applicant: Corixa Corporation
    Inventors: David A. Johnson, C. Gregory Sowell
  • Publication number: 20030195211
    Abstract: Methods of inhibiting phosphatidylinositol 3-kinase delta isoform (PI3K&dgr;) activity, and methods of treating diseases, such as disorders of immunity and inflammation, in which PI3K&dgr; plays a role in leukocyte function are disclosed. Preferably, the methods employ active agents that selectively inhibit PI3K&dgr;, while not significantly inhibiting activity of other PI3K isoforms. Compounds are provided that inhibit PI3K&dgr; activity, including compounds that selectively inhibit PI3K&dgr; activity. Methods of using PI3K&dgr; inhibitory compounds to inhibit cancer cell growth or proliferation are also provided. Accordingly, the invention provides methods of using PI3K&dgr; inhibitory compounds to inhibit PI3K&dgr;-mediated processes in vitro and in vivo.
    Type: Application
    Filed: January 6, 2003
    Publication date: October 16, 2003
    Applicant: ICOS Corporation
    Inventors: Chanchal Sadhu, Ken Dick, Jennifer Treiberg, C. Gregory Sowell, Edward A. Kesicki, Amy Oliver
  • Publication number: 20030092643
    Abstract: Aminoalkyl glucosaminide phosphate (AGP) compounds that are adjuvants and immunoeffectors are described and claimed. The compounds have a 2-deoxy-2-amino glucose in glycosidic linkage with an aminoalkyl (aglycon) group. Compounds are phosphorylated at the 4 or 6 carbon on the glucosaminide ring and comprise three 3- alkanoyloxyalkanoyl residues. The compounds augment antibody production in immunized animals as well as stimulate cytokine production and activate macrophages. Compositions and methods for using the compounds as adjuvants and immunoeffectors are also disclosed.
    Type: Application
    Filed: January 8, 2002
    Publication date: May 15, 2003
    Applicant: Corixa Corporation
    Inventors: David A. Johnson, C. Gregory Sowell
  • Patent number: 6525028
    Abstract: This invention provides compounds containing a 2-deoxy-2-amino-&bgr;-D-glucopyranose (glucosamine) glycosidically linked to an cyclic aminoalkyl (aglycon) group. The invention further provides methods for inducing an immune response using the compounds of the present invention in the presence or absence of an antigen. In addition, methods for treating disease with the compounds of the present invention with or without an antigen are also provided in this invention.
    Type: Grant
    Filed: February 4, 2002
    Date of Patent: February 25, 2003
    Assignee: Corixa Corporation
    Inventors: David A. Johnson, Jory R. Baldridge, C. Gregory Sowell, Christopher W. Cluff
  • Patent number: 6518277
    Abstract: Methods of inhibiting phosphatidylinositol 3-kinase delta isoform (PI3K&dgr;) activity, and methods of treating diseases, such as disorders of immunity and inflammation, in which PI3K&dgr; plays a role in leukocyte function are disclosed. Preferably, the methods employ active agents that selectively inhibit PI3K&dgr;, while not significantly inhibiting activity of other PI3K isoforms. Compounds are provided that inhibit PI3K&dgr; activity, including compounds that selectively inhibit PI3K&dgr; activity. Methods of using PI3K&dgr; inhibitory compounds to inhibit cancer cell growth or proliferation are also provided. Accordingly, the invention provides methods of using PI3K&dgr; inhibitory compounds to inhibit PI3K&dgr;-mediated processes in vitro and in vivo.
    Type: Grant
    Filed: April 24, 2001
    Date of Patent: February 11, 2003
    Assignee: ICOS Corporation
    Inventors: Chanchal Sadhu, Ken Dick, Jennifer Treiberg, C. Gregory Sowell, Edward A. Kesicki, Amy Oliver
  • Publication number: 20020161014
    Abstract: Methods of inhibiting phosphatidylinositol 3-kinase delta isoform (PI3K&dgr;) activity, and methods of treating diseases, such as disorders of immunity and inflammation, in which PI3K&dgr; plays a role in leukocyte function are disclosed. Preferably, the methods employ active agents that selectively inhibit PI3K&dgr;, while not significantly inhibiting activity of other PI3K isoforms. Compounds are provided that inhibit PI3K&dgr; activity, including compounds that selectively inhibit PI3K&dgr; activity. Methods of using PI3K&dgr; inhibitory compounds to inhibit cancer cell growth or proliferation are also provided. Accordingly, the invention provides methods of using PI3K&dgr; inhibitory compounds to inhibit PI3K&dgr;-mediated processes in vitro and in vivo.
    Type: Application
    Filed: October 19, 2001
    Publication date: October 31, 2002
    Inventors: Chanchal Sadhu, Ken Dick, Jennifer Treiberg, C. Gregory Sowell, Edward A. Kesicki, Amy Oliver
  • Patent number: 6399590
    Abstract: The invention concerns a novel phosphoglycolipid compound. The compound of the subject invention is 2-Deoxy-6-O-[2-deoxy-4-O-phosphono-3-O-[(R)-3-tetradecanoyloxytetradecanoyl]-2-[(R)-3-octadecanoyloxytetradecanoylamino]-&bgr;-D-glucopyranosyl]-2-[(R)-3-hexadecanoyloxytetradecanoylamino]-D-glucopyranose and pharmaceutically acceptable salts thereof. The compound is not immunoreactive, not pyrogenic, not toxic but is active in ameliorating tissue damage due to ischemia/reperfusion injury. Methods for using the subject compound to protect against reversible and irreversible damage due to ischemia/reperfusion injury are also disclosed.
    Type: Grant
    Filed: August 10, 2001
    Date of Patent: June 4, 2002
    Assignee: Corixa Corporation
    Inventors: Gary T. Elliott, Patricia A. Weber, C. Gregory Sowell
  • Publication number: 20020048588
    Abstract: Aminoalkyl glucosaminide phosphate (AGP) compounds that are adjuvants and immunoeffectors are described and claimed. The compounds have a 2-deoxy-2-amino glucose in glycosidic linkage with an aminoalkyl (aglycon) group. Compounds are phosphorylated at the 4 or 6 carbon on the glucosaminide ring and comprise three 3-alkanoyloxyalkanoyl residues. The compounds augment antibody production in immunized animals as well as stimulate cytokine production and activate macrophages. Methods for using the compounds as adjuvants and immunoeffectors are also disclosed.
    Type: Application
    Filed: July 12, 2001
    Publication date: April 25, 2002
    Inventors: David A. Johnson, C. Gregory Sowell
  • Publication number: 20020045586
    Abstract: Methods for treating diseases or conditions modulated or ameliorated by nitric oxide, particularly ischemia and reperfusion injury, are provided, using glycolipids structurally related to monophosphoryl lipid A but with notable reduction in proinflammatory and pyrogenic activity.
    Type: Application
    Filed: March 14, 2001
    Publication date: April 18, 2002
    Inventors: Gary T. Elliott, David Johnson, Patricia A. Weber, C. Gregory Sowell
  • Patent number: 6355257
    Abstract: Aminoalkyl glucosamine phosphate compounds that are adjuvants and immunoeffectors are described and claimed. The compounds have a 2-deoxy-2-amino glucose in glycosidic linkage with an aminoalkyl (aglycon) group. Compounds are phosphorylated at the 4 or 6 carbon on the glucosamine ring and comprise three 3-alkanoyloxyalkanoyl residues. The compounds augment antibody production in immunized animals as well as stimulate cytokine production and activate macrophages. Methods for using the compounds as adjuvants and immunoeffectors are also disclosed.
    Type: Grant
    Filed: May 7, 1998
    Date of Patent: March 12, 2002
    Assignee: Corixa Corporation
    Inventors: David A. Johnson, C. Gregory Sowell
  • Publication number: 20020013291
    Abstract: The invention concerns a novel phosphoglycoilpid compound. The compound of the subject invention is 2-Deoxy-6-O-[2-deoxy-4-O-phosphono-3-O-[(R)-3-tetradecanoyloxytetradecanoyl]-2-[(R)-3-octadecanoyloxytetradecanoylamino]-&bgr;-D-glucopyranosyl]-2-[(R)-3-hexadecanoyloxytetradecanoylamino]-D-glucopyranose and pharmaceutically acceptable salts thereof. The compound is not immunoreactive, not pyrogenic, not toxic but is active in ameliorating tissue damage due to ischemia/reperfusion injury. Methods for using the subject compound to protect against reversible and irreversible damage due to ischemia/reperfusion injury are also disclosed.
    Type: Application
    Filed: August 10, 2001
    Publication date: January 31, 2002
    Inventors: Gary T. Elliott, Patricia A. Weber, C. Gregory Sowell
  • Patent number: 6303347
    Abstract: Aminoalkyl glucosaminide phosphate (AGP) compounds that are adjuvants and immunoeffectors are described and claimed. The compounds have a 2-deoxy-2-amino glucose in glycosidic linkage with an aminoalkyl (aglycon) group. Compounds are phosphorylated at the 4 or 6 carbon on the glucosaminide ring and comprise three 3-alkanoyloxyalkanoyl residues. The compounds augment antibody production in immunized animals as well as stimulate cytokine production and activate macrophages. Methods for using the compounds as adjuvants and immunoeffectors are also disclosed.
    Type: Grant
    Filed: November 12, 1999
    Date of Patent: October 16, 2001
    Assignee: Corixa Corporation
    Inventors: David A. Johnson, C. Gregory Sowell
  • Patent number: 6113918
    Abstract: Aminoalkyl glucosamine phosphate compounds that are adjuvants and immunoeffectors are described and claimed. The compounds have a 2-deoxy-2-amino glucose in glycosidic linkage with an aminoalkyl (aglycon) group. Compounds are phosphorylated at the 4 or 6 carbon on the glucosamine ring and comprise three 3-alkanoyloxyalkanoyl residues. The compounds augment antibody production in immunized animals as well as stimulate cytokine production and activate macrophages. Methods for using the compounds as adjuvants and immunoeffectors are also disclosed.
    Type: Grant
    Filed: May 8, 1997
    Date of Patent: September 5, 2000
    Assignee: Ribi ImmunoChem Research, Inc.
    Inventors: David A. Johnson, C. Gregory Sowell
  • Patent number: 6013640
    Abstract: The invention concerns a novel phosphoglycolipid compound. The compound of the subject invention is 2-Deoxy-6-O-[2-deoxy-4-O-phosphono-3-O-[(R)-3-tetradecanoyloxytetradecanoy l]-2-[(R)-3-octadecanoyloxytetradecanoylamino]-.beta.-D-glucopyranosyl]-2-[ (R)-3-hexadecanoyloxytetradecanoylamino]-D-glucopyranose and pharmaceutically acceptable salts thereof. The compound is not immunoreactive, not pyrogenic, not toxic but is active in ameliorating tissue damage due to ischemia/reperfusion injury. Methods for using the subject compound to protect against reversible and irreversible damage due to ischemia/reperfusion injury are also disclosed.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: January 11, 2000
    Assignee: Ribi ImmunoChem Research, Inc.
    Inventors: Gary T. Elliott, Patricia A. Weber, C. Gregory Sowell