Patents by Inventor David A. Spiegel

David A. Spiegel 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: 20160082102
    Abstract: The present invention is directed to new bifunctional compounds and methods for treating HIV infections. The bifunctional small molecules, generally referred to as ARM-H's, function through orthogonal pathways, by inhibiting the gp120-CD4 interaction, and by recruiting anti-DNP antibodies to gp120-expressing cells, thereby preventing cell infection and spread of HIV. It has been shown that ARM-H's bind to gp120 and gp-120 expressing cells competitively with CD4, thereby decreasing viral infectivity as shown by an MT-2 cell assay, the binding leading to formation of a ternary complex by recruiting anti-DNP antibodies to bind thereto, the antibodies present in the ternary complex promoting the complement-dependent destruction of the gp120-expressing cells. Compounds and methods are described herein.
    Type: Application
    Filed: October 15, 2015
    Publication date: March 24, 2016
    Inventors: David Spiegel, Christopher Parker
  • Patent number: 9181224
    Abstract: The present invention is directed to new bifunctional compounds and methods for treating HIV infections. The bifunctional small molecules, generally referred to as ARM-H? function through orthogonal pathways, by inhibiting the gp120-CD4 interaction, and by recruiting anti-DNP antibodies to gp120-expressing cells, thereby preventing cell infection and spread of HIV. It has been shown that ARM-H's bind to gp120 and gp-120 expressing cells competitively with CD4, thereby decreasing viral infectivity as shown by an MT-2 cell assay, the binding leading to formation of a ternary complex by recruiting anti-DNP antibodies to bind thereto, the antibodies present in the ternary complex promoting the complement-dependent destruction of the gp120-expressing cells. Compounds and methods are described herein.
    Type: Grant
    Filed: October 12, 2010
    Date of Patent: November 10, 2015
    Assignee: YALE UNIVERSITY
    Inventors: David Spiegel, Christopher Parker
  • Publication number: 20150110742
    Abstract: The present invention relates to chimeric chemical compounds which are used to recruit antibodies to cancer cells, in particular, prostate cancer cells or metastasized prostate cancer cells. The compounds according to the present invention comprise an antibody binding terminus (ABT) moiety covalently bonded to a cell binding terminus (CBT) and Toll-like receptor agonist (TLR) through a linker and a multifunctional connector group or molecule.
    Type: Application
    Filed: May 1, 2013
    Publication date: April 23, 2015
    Applicant: Yale University
    Inventors: David Spiegel, Kelly Fitzgerald
  • Publication number: 20150099260
    Abstract: A preservative for body fluids, proteins, cells and tissues comprising an effective amount of an AGE crosslink breaker for preventing formation of advanced glycation end products. The AGE crosslink breaker comprises a compound of Structure (1): wherein V, W, X, Y and Z are any atom suitable for a heterocyclic carbene or carbene precursor framework, including B, C, O, N, S, Se, P, and As in any chemically-feasible oxidation state; wherein Q, R, M, T and U are any atom or substituent, including but not limited to, H, CLn, NLn, PLn, OLn, SLn, SeLn, LnCl, LnBr, LnI, wherein L is any atom, substituent or group, and n is any integer such that Q, R, M, T, and U can access all chemically-feasible oxidation states; and wherein G comprises any charged counter ion including, but not limited to those derived from C, O, N, B, Al, S, Se, Cl, Br, I in any chemically-feasible oxidation state.
    Type: Application
    Filed: October 3, 2014
    Publication date: April 9, 2015
    Inventors: David Spiegel, Jeanne Hendrickson
  • Publication number: 20150087609
    Abstract: The present invention is directed to new bifunctional compounds and methods for treating HIV infections. The bifunctional small molecules, generally referred to as CDM-Hs, function through orthogonal pathways, by inhibiting the gp120-CD4 interaction, and by introducing cytotoxic moieties to gp120-expressing cells, thereby causing cell death and preventing cell infection and spread of HIV. It is shown that CDM-Hs bind to gp120 and gp-120 expressing cells competitively with CD4, and these compounds cause cell death of HIV-infected cells, thereby decreasing viral infectivity. Compounds and methods are described herein.
    Type: Application
    Filed: March 15, 2013
    Publication date: March 26, 2015
    Inventors: David Spiegel, Christopher Parker
  • Publication number: 20150018395
    Abstract: The present invention relates to chimeric chemical compounds which are used to recruit antibodies to cancer cells, in particular, prostate cancer cells or metastasized prostate cancer cells. The compounds according to the present invention comprise an antibody binding terminus (ABT) moiety covalently bonded to a cell binding terminus (CBT) through a linker and optionally, a connector molecule.
    Type: Application
    Filed: September 8, 2014
    Publication date: January 15, 2015
    Inventors: David Spiegel, Ryan Murelli, Andrew Zhang
  • Publication number: 20140308342
    Abstract: The present invention relates to chimeric (preferably, bifunctional) compounds, compositions comprising those compounds and methods of treating cancer in a patient or subject, especially including metastatic cancer where cancer cells exhibit overexpression (heightened expression) of cell surface urokinase-type plasminogen activator receptor (urokinase receptor) compared to normal (non-cancerous) cells. The compounds preferably covalently bind to the urokinase receptor and recruit native antibodies of the patient or subject where the antibodies can selectively degrade and/or deactivate targeted cancer cells through antibody-dependent cellular phagocytosis and/or antibody-dependent cellular cytotoxicity (ADCC) against a large number and variety of cancers, thus providing cancer cell death and/or an inhibition of growth, elaboration and/or metastasis of the cancer, including remission and cure of the patient's cancer.
    Type: Application
    Filed: November 7, 2012
    Publication date: October 16, 2014
    Inventors: David A. Spiegel, Charles E. Jakobsche
  • Patent number: 8859509
    Abstract: The present invention relates to chimeric chemical compounds which are used to recruit antibodies to cancer cells, in particular, prostate cancer cells or metastasized prostate cancer cells. The compounds according to the present invention comprise an antibody binding terminus (ABT) moiety covalently bonded to a cell binding terminus (CBT) through a linker and optionally, a connector molecule.
    Type: Grant
    Filed: May 13, 2009
    Date of Patent: October 14, 2014
    Assignee: Yale University
    Inventors: David Spiegel, Ryan Murelli, Andrew Zhang
  • Patent number: 8852630
    Abstract: The present invention relates to chimeric chemical compounds which are used to recruit antibodies to cancer cells, in particular, prostate cancer cells or metastasized prostate cancer cells. The compounds according to the present invention comprise an antibody binding terminus (ABT) moiety covalently bonded to a cell binding terminus (CBT) through a linker and optionally, a connector molecule.
    Type: Grant
    Filed: June 30, 2011
    Date of Patent: October 7, 2014
    Assignee: Yale University
    Inventors: David Spiegel, Ryan Murelli, Andrew Zhang
  • Publication number: 20130245040
    Abstract: The present invention is directed to new bifunctional compounds and methods for treating HIV infections. The bifunctional small molecules, generally referred to as ARM-HI's, function through orthogonal pathways, by inhibiting the gp120-CD4 interaction, and by recruiting anti-DNP antibodies to gp120-expressing cells, thereby preventing cell infection and spread of HIV. It has been shown that ARM-HI's bind to gp120 and gp-120 expressing cells competitively with CD4, thereby decreasing viral infectivity as shown by an MT-2 cell assay, the binding leading to formation of a ternary complex by recruiting anti-DNP antibodies to bind thereto, the antibodies present in the ternary complex promoting the complement-dependent destruction of the gp120-expressing cells. Compounds and methods are described herein.
    Type: Application
    Filed: November 17, 2011
    Publication date: September 19, 2013
    Inventors: David Spiegel, Christopher Parker
  • Publication number: 20120269766
    Abstract: The present invention is directed to new bifunctional compounds and methods for treating HIV infections. The bifunctional small molecules, generally referred to as ARM-H? function through orthogonal pathways, by inhibiting the gp120-CD4 interaction, and by recruiting anti-DNP antibodies to gp120-expressing cells, thereby preventing cell infection and spread of HIV. It has been shown that ARM-H's bind to gp120 and gp-120 expressing cells competitively with CD4, thereby decreasing viral infectivity as shown by an MT-2 cell assay, the binding leading to formation of a ternary complex by recruiting anti-DNP antibodies to bind thereto, the antibodies present in the ternary complex promoting the complement-dependent destruction of the gp120-expressing cells. Compounds and methods are described herein.
    Type: Application
    Filed: October 12, 2010
    Publication date: October 25, 2012
    Applicant: Yale University
    Inventors: David Spiegel, Christopher Parker
  • Publication number: 20120034295
    Abstract: The present invention relates to chimeric chemical compounds which are used to recruit antibodies to cancer cells, in particular, prostate cancer cells or metastasized prostate cancer cells. The compounds according to the present invention comprise an antibody binding terminus (ABT) moiety covalently bonded to a cell binding terminus (CBT) through a linker and optionally, a connector molecule.
    Type: Application
    Filed: June 30, 2011
    Publication date: February 9, 2012
    Inventors: David Spiegel, Ryan Murelli, Andrew Zhang
  • Publication number: 20110201563
    Abstract: The present invention relates to chimeric chemical compounds which are used to recruit antibodies to cancer cells, in particular, prostate cancer cells or metastasized prostate cancer cells. The compounds according to the present invention comprise an antibody binding terminus (ABT) moiety covalently bonded to a cell binding terminus (CBT) through a linker and optionally, a connector molecule.
    Type: Application
    Filed: May 13, 2009
    Publication date: August 18, 2011
    Applicant: YALE UNIVERSITY
    Inventors: David Spiegel, Ryan Murelli, Andrew Zhang
  • Patent number: 4237425
    Abstract: A bias adjusting circuit for a push-pull amplifier is disclosed, which automatically increases or decreases the bias in the amplifier circuit so that the desired bias level is maintained. The bias adjusting circuit measures the current consumption of both halves of the push-pull amplifier, determines the point at which output current zero crossings have occurred, and at these times makes any necessary changes to the bias current to conform to a desired level. The circuit has an insignificant effect on the amplifier's power efficiency, and offers a degree of bias stability unattainable with conventional techniques.
    Type: Grant
    Filed: May 3, 1979
    Date of Patent: December 2, 1980
    Inventor: David A. Spiegel