Patents by Inventor Wynn Volkert

Wynn Volkert 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: 20070065362
    Abstract: A compound for use as a therapeutic or diagnostic radiopharmaceutical includes a group capable of complexing a medically useful metal attached to a moiety which is capable of binding to a gastrin releasing peptide receptor. A method for treating a subject having a neoplastic disease includes administering to the subject an effective amount of a radiopharmaceutical having a metal chelated with a chelating group attached to a moiety capable of binding to a gastrin releasing peptide receptor expressed on tumor cells with subsequent internalization inside of the cell. A method of forming a therapeutic or diagnostic compound includes reacting a metal synthon with a chelating group covalently linked with a moiety capable of binding a gastrin releasing peptide receptor.
    Type: Application
    Filed: November 3, 2006
    Publication date: March 22, 2007
    Inventors: Timothy Hoffman, Wynn Volkert, Ning Li, Gary Sieckman, Chrys-Ann Higginbotham
  • Patent number: 7147838
    Abstract: A compound for use as a therapeutic or diagnostic radiopharmaceutical includes a group capable of complexing a medically useful metal attached to a moiety which is capable of binding to a gastrin releasing peptide receptor. A method for treating a subject having a neoplastic disease includes administering to the subject an effective amount of a radiopharmaceutical having a metal chelated with a chelating group attached to a moiety capable of binding to a gastrin releasing peptide receptor expressed on tumor cells with subsequent internalization inside of the cell. A method of forming a therapeutic or diagnostic compound includes reacting a metal synthon with a chelating group covalently linked with a moiety capable of binding a gastrin releasing peptide receptor.
    Type: Grant
    Filed: December 29, 2004
    Date of Patent: December 12, 2006
    Assignee: Curators of the University of Missouri
    Inventors: Timothy J. Hoffman, Wynn A. Volkert, Ning Li, Gary Sieckman, Chrys-Ann Higginbotham
  • Patent number: 7060247
    Abstract: A compound for use as a therapeutic or diagnostic radiopharmaceutical includes a group capable of complexing a medically useful metal attached to a moiety which is capable of binding to a gastrin releasing peptide receptor. A method for treating a subject having a neoplastic disease includes administering to the subject an effective amount of a radiopharmaceutical having a metal chelated with a chelating group attached to a-moiety capable of binding to a gastrin releasing peptide receptor expressed on tumor cells with subsequent internalization inside of the cell. A method of forming a therapeutic or diagnostic compound includes reacting a metal synthon with a chelating group covalently linked with a moiety capable of binding a gastrin releasing peptide receptor.
    Type: Grant
    Filed: May 2, 2001
    Date of Patent: June 13, 2006
    Assignee: The Curators of the University of Missouri
    Inventors: Timothy J. Hoffman, Wynn A. Volkert, Gary Sieckman, Charles J. Smith, Hariprasad Gali
  • Publication number: 20060067886
    Abstract: A compound for use as a therapeutic or diagnostic radiopharmaceutical includes a group capable of complexing a medically useful metal attached to a moiety which is capable of binding to a gastrin releasing peptide receptor. A method for treating a subject having a neoplastic disease includes administering to the subject an effective amount of a radiopharmaceutical having a metal chelated with a chelating group attached to a moiety capable of binding to a gastrin releasing peptide receptor expressed on tumor cells with subsequent internalization inside of the cell. A method of forming a therapeutic or diagnostic compound includes reacting a metal synthon with a chelating group covalently linked with a moiety capable of binding a gastrin releasing peptide receptor.
    Type: Application
    Filed: November 4, 2005
    Publication date: March 30, 2006
    Inventors: Timothy Hoffman, Wynn Volkert, Gary Sieckman, Charles Smith, Hariprasad Gali
  • Patent number: 6989158
    Abstract: There is provided a complex for use as a therapeutic pharmaceutical, the complex has a ligand containing at least one hydroxyalkyl phosphine donor group bound to a gold atom to form a stable gold-ligand complex. Also provided is a method of treating cancer by administering an effective amount of a complex having a ligand of at least one hydroxyalkyl phosphine group bound to a gold atom to form a stable gold-ligand complex. Also provided is a method of preventing the metastasis of cancer and arresting cell growth by administering an effective amount of a complex having a ligand of at least one hydroxyalkyl phosphine group bound to a gold atom to form a stable gold-ligand complex.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: January 24, 2006
    Assignee: The Curators of the University of Missouri
    Inventors: Kattesh V. Katti, Wynn A. Volkert, Timothy Hoffman
  • Publication number: 20050163710
    Abstract: A compound for use as a therapeutic or diagnostic radiopharmaceutical includes a group capable of complexing a medically useful metal attached to a moiety which is capable of binding to a gastrin releasing peptide receptor. A method for treating a subject having a neoplastic disease includes administering to the subject an effective amount of a radiopharmaceutical having a metal chelated with a chelating group attached to a moiety capable of binding to a gastrin releasing peptide receptor expressed on tumor cells with subsequent internalization inside of the cell. A method of forming a therapeutic or diagnostic compound includes reacting a metal synthon with a chelating group covalently linked with a moiety capable of binding a gastrin releasing peptide receptor.
    Type: Application
    Filed: December 29, 2004
    Publication date: July 28, 2005
    Inventors: Timothy Hoffman, Wynn Volkert, Ning Li, Gary Sieckman, Chrys-Ann Higginbotham
  • Patent number: 6921526
    Abstract: A compound for use as a therapeutic or diagnostic radiopharmaceutical includes a group capable of complexing a medically useful metal attached to a moiety which is capable of binding to a gastrin releasing peptide receptor. A method for treating a subject having a neoplastic disease includes administering to the subject an effective amount of a radiopharmaceutical having a metal chelated with a chelating group attached to a moiety capable of binding to a gastrin releasing peptide receptor expressed on tumor cells with subsequent internalization inside of the cell. A method of forming a therapeutic or diagnostic compound includes reacting a metal synthon with a chelating group covalently linked with a moiety capable of binding a gastrin releasing peptide receptor.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: July 26, 2005
    Assignee: Curators of the University of Missouri
    Inventors: Timothy J. Hoffman, Wynn A. Volkert, Ning Li, Gary Sieckman, Chrys-Ann Higginbotham
  • Patent number: 6780397
    Abstract: This invention describes a novel strategy to produce phosphine-functionalized biomolecules (e.g. peptides or proteins) for potential use in the design and development of site-specific radiopharmaceuticals for diagnosis or therapy of specific cancers. Hydrophilic alkyl phosphines, in general, tend to be oxidatively unstable. Therefore, incorporation of such phosphine functionalities on peptide (and other biomolecule) backbones, without oxidizing the PIII centers, is difficult. In this context this discovery reports on a new technology by which phosphines, in the form of bifunctional chelating agents, can be directly incorporated on biomolecular backbones using manual synthetic or solid phase peptide synthesis methodologies. The superior ligating abilities of phosphine ligands, with various diagnostically (e.g. TC-99m) or therapeutically (e.g.
    Type: Grant
    Filed: August 31, 1999
    Date of Patent: August 24, 2004
    Assignee: Curators of the University of Missouri
    Inventors: Kattesh V. Katti, Hariprasad Gali, Wynn A. Volkert
  • Publication number: 20040042963
    Abstract: This invention describes a novel strategy to produce phosphine-functionalized biomolecules (e.g. peptides or proteins) for potential use in the design and development of site-specific radiopharmaceuticals for diagnosis or therapy of specific cancers. Hydrophilic alkyl phosphines, in general, tend to be oxidatively unstable. Therefore, incorporation of such phosphine functionalities on peptide (and other biomolecule) backbones, without oxidizing the PIII centers, is difficult. In this context this discovery reports on a new technology by which phosphines, in the form of bifunctional chelating agents, can be directly incorporated on biomolecular backbones using manual synthetic or solid phase peptide synthesis methodologies. The superior ligating abilities of phosphine ligands, with various diagnostically (e.g. TC-99m) or therapeutically (e.g.
    Type: Application
    Filed: August 31, 1999
    Publication date: March 4, 2004
    Inventors: KATTESH V. KATTI, HARIPRASAD GALI, WYNN A. VOLKERT
  • Publication number: 20030232013
    Abstract: The present invention provides methods of targeting breast cancer, prostate cancer, pancreatic cancer or melanoma cells using ST peptides. These methods permit both diagnostic evaluation and therapeutic intervention using appropriate conjugates.
    Type: Application
    Filed: February 20, 2003
    Publication date: December 18, 2003
    Inventors: Gary Sieckman, Wynn Volkert, Leonard Forte, Timothy Hoffman, Hariprasad Gali
  • Patent number: 6635235
    Abstract: There is provided a method of labeling a biomolecule with a transition metal or radiometal in a site specific manner to produce a diagnostic or therapeutic pharmaceutical compound by synthesizing a P2N2-bifunctional chelating agent intermediate, complexing the intermediate with a radio metal or a transition metal, and covalently linking the resulting metal-complexed bifunctional chelating agent with a biomolecule in a site specific manner. Also provided is a method of synthesizing the —PR2 containing biomolecules by synthesizing a P2N2-bifunctional chelating agent intermediate, complexing the intermediate with a radiometal or a transition metal, and covalently linking the resulting radio metal-complexed bifunctional chelating agent with a biomolecule in a site specific manner. There is provided a therapeutic or diagnostic agent comprising a —PR2 containing biomolecule.
    Type: Grant
    Filed: June 23, 2000
    Date of Patent: October 21, 2003
    Assignee: The Curators of the University of Missouri
    Inventors: Kattesh V. Katti, Kandikere R. Prabhu, Hariprasad Gali, Nagavara Kishore Pillarsetty, Wynn A. Volkert
  • Publication number: 20020176819
    Abstract: A compound for use as a therapeutic or diagnostic radiopharmaceutical includes a group capable of complexing a medically useful metal attached to a moiety which is capable of binding to a gastrin releasing peptide receptor. A method for treating a subject having a neoplastic disease includes administering to the subject an effective amount of a radiopharmaceutical having a metal chelated with a chelating group attached to a moiety capable of binding to a gastrin releasing peptide receptor expressed on tumor cells with subsequent internalization inside of the cell. A method of forming a therapeutic or diagnostic compound includes reacting a metal synthon with a chelating group covalently linked with a moiety capable of binding a gastrin releasing peptide receptor.
    Type: Application
    Filed: April 12, 2002
    Publication date: November 28, 2002
    Inventors: Timothy J. Hoffman, Wynn A. Volkert, Ning Li, Gary Sieckman, C.A. Higginbotham
  • Publication number: 20020054855
    Abstract: A compound for use as a therapeutic or diagnostic radiopharmaceutical includes a group capable of complexing a medically useful metal attached to a moiety which is capable of binding to a gastrin releasing peptide receptor. A method for treating a subject having a neoplastic disease includes administering to the subject an effective amount of a radiopharmaceutical having a metal chelated with a chelating group attached to a-moiety capable of binding to a gastrin releasing peptide receptor expressed on tumor cells with subsequent internalization inside of the cell. A method of forming a therapeutic or diagnostic compound includes reacting a metal synthon with a chelating group covalently linked with a moiety capable of binding a gastrin releasing peptide receptor.
    Type: Application
    Filed: May 2, 2001
    Publication date: May 9, 2002
    Inventors: Timothy J. Hoffman, Wynn A. Volkert, Gary Sieckman, Charles J. Smith, Hariprasad Gali
  • Patent number: 6200546
    Abstract: A compound for use as a therapeutic or diagnostic radiopharmaceutical includes a group capable of complexing a medically useful metal attached to a moiety which is capable of binding to a gastrin releasing peptide receptor. A method for treating a subject having a neoplastic disease includes administering to the subject an effective amount of a radiopharmaceutical having a metal chelated with a chelating group attached to a moiety capable of binding to a gastrin releasing peptide receptor expressed on tumor cells with subsequent internalization inside of the cell. A method of forming a therapeutic or diagnostic compound includes reacting a metal synthon with a chelating group covalently linked with a moiety capable of binding a gastrin releasing peptide receptor.
    Type: Grant
    Filed: April 22, 1998
    Date of Patent: March 13, 2001
    Assignee: The Curators of the University of Missouri
    Inventors: Timothy J. Hoffman, Wynn A. Volkert, Ning Li, Gary Sieckman, C. A. Higginbotham
  • Patent number: 6054115
    Abstract: A compound and method of making a compound for use as a diagnostic or therapeutic pharmaceutical comprises at least one functionalized hydroxyalkyl phosphine donor group and one or more sulfur or nitrogen donor and a metal combined with the ligand.
    Type: Grant
    Filed: March 3, 1998
    Date of Patent: April 25, 2000
    Assignee: The Curators of the University of Missouri
    Inventors: Kattesh V. Katti, Srinivasa Rao Karra, Douglas E. Berning, C. Jeffrey Smith, Wynn A. Volkert, Alan R. Ketring
  • Patent number: 5948386
    Abstract: A method of forming phosphine-amine conjugates includes reacting a hydroxymethyl phosphine group of an amine-free first molecule with at least one free amine group of a second molecule to covalently bond the first molecule with the second molecule through an aminomethyl phosphorus linkage and the conjugates formed thereby.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: September 7, 1999
    Assignee: The Curators of the University of Missouri
    Inventors: Kattesh V. Katti, Douglas E. Berning, Wynn A. Volkert, Alan R. Ketring, Robert Churchill
  • Patent number: 5876693
    Abstract: A compound and method of making a compound for use as a diagnostic or therapeutic pharmaceutical comprises a functionalized hydroxyalkyl phosphine ligand and a metal combined with the ligand.
    Type: Grant
    Filed: July 30, 1997
    Date of Patent: March 2, 1999
    Assignee: The Curators of the University of Missouri
    Inventors: Kattesh V. Katti, Prahlad R. Singh, V. Sreenivasa Reddy, Kavita K. Katti, Wynn A. Volkert, Alan R. Ketring
  • Patent number: 5855867
    Abstract: A compound and method of making a compound for use as a diagnostic or therapeutic pharmaceutical comprises at least one functionalized hydroxyalkyl phosphine donor group and one or more sulfur or nitrogen donor and a metal combined with the ligand.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: January 5, 1999
    Assignee: The Curators of the University of Missouri
    Inventors: Kattesh V. Katti, Srinivasa Rao Karra, Douglas E. Berning, C. Jeffrey Smith, Wynn A. Volkert, Alan R. Ketring
  • Patent number: 5843993
    Abstract: A complex and method for making same for use as a diagnostic or therapeutic pharmaceutical includes a ligand comprising at least one hydroxyalkyl phosphine donor group bound to a gold atom to form a gold-ligand complex that is stable in aqueous solutions containing oxygen, serum and other body fluids.
    Type: Grant
    Filed: March 14, 1997
    Date of Patent: December 1, 1998
    Assignee: The Curators of the University of Missouri
    Inventors: Kattesh V. Katti, Douglas E. Berning, Wynn A. Volkert, Alan R. Ketring
  • Patent number: 5601800
    Abstract: A class of diagnostic and therapeutic compounds derived from phosphinimines that include ligands containing either a single phosphinimine functionality or both a phosphinimine group and a phosphine or arsine group, or an aminato group, or a second phosphinimine moiety. These phosphinimine ligands are complexed to early transition metal radionuclides (e.g. .sup.99m Tc or .sup.186 Re/.sup.188 Re) or late transition metals (e.g., .sup.105 Rh or .sup.109 Pd). The complexes with these metals .sup.186 Re/.sup.188 Re, .sup.99m Tc and .sup.109 Pd exhibit a high in vitro and high in vivo stability. The complexes are formed in high yields and can be neutral or charged. These ligands can also be used to form stable compounds with paramagnetic transition metals (e.g. Fe and Mn) for potential use as MRI contrast agents. Applications for the use of ligands and making the ligands are also disclosed.
    Type: Grant
    Filed: July 29, 1994
    Date of Patent: February 11, 1997
    Assignee: Curators of the University of Missouri
    Inventors: Kattesh V. Katti, Wynn A. Volkert, Alan R. Ketring, Prahlad R. Singh