Patents by Inventor Stephen Kron

Stephen Kron 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: 10550421
    Abstract: Methods and compositions for quantitative immunoassays are provided, in which ligand-conjugated probes are used to label samples and ligand-surfaced microspheres are used as quantitative reference standards. Certain embodiments provide a method of quantitative flow cytometry where ligands are oligonucleotides, and a sample comprising one or more cells is contacted with a hybridized antibody::fluorophore labeled targeting construct to label the cells, and the labeled cells are analyzed. In some embodiments, a population of quantitative labeled oligospheres labeled with the same fluorescent label as the cells is analyzed using the flow cytometer and used to create a quantitative standard curve of cytometer intensity versus molecules fluorescent label per oligosphere event. A standard curve trendline is established and used to determine the molecules of fluorescent label per cellular event for the antigen-positive cell populations.
    Type: Grant
    Filed: May 26, 2017
    Date of Patent: February 4, 2020
    Assignee: The University of Chicago
    Inventors: Amy Flor, Ryan Duggan, Stephen Kron
  • Publication number: 20170268036
    Abstract: Methods and compositions for quantitative immunoassays are provided, in which ligand-conjugated probes are used to label samples and ligand-surfaced microspheres are used as quantitative reference standards. Certain embodiments provide a method of quantitative flow cytometry where ligands are oligonucleotides, and a sample comprising one or more cells is contacted with a hybridized antibody::fluorophore labeled targeting construct to label the cells, and the labeled cells are analyzed. In some embodiments, a population of quantitative labeled oligospheres labeled with the same fluorescent label as the cells is analyzed using the flow cytometer and used to create a quantitative standard curve of cytometer intensity versus molecules fluorescent label per oligosphere event. A standard curve trendline is established and used to determine the molecules of fluorescent label per cellular event for the antigen-positive cell populations.
    Type: Application
    Filed: May 26, 2017
    Publication date: September 21, 2017
    Inventors: Amy Flor, Ryan Duggan, Stephen Kron
  • Patent number: 9663818
    Abstract: Methods and compositions for quantitative immunoassays are provided, in which ligand-conjugated probes are used to label samples and ligand-surfaced microspheres are used as quantitative reference standards. Certain embodiments provide a method of quantitative flow cytometry where ligands are oligonucleotides, and a sample comprising one or more cells is contacted with a hybridized antibody::fluorophore labeled targeting construct to label the cells, and the labeled cells are analyzed. In some embodiments, a population of quantitative labeled oligospheres labeled with the same fluorescent label as the cells is analyzed using the flow cytometer and used to create a quantitative standard curve of cytometer intensity versus molecules fluorescent label per oligosphere event. A standard curve trendline is established and used to determine the molecules of fluorescent label per cellular event for the antigen-positive cell populations.
    Type: Grant
    Filed: June 14, 2013
    Date of Patent: May 30, 2017
    Assignee: The University of Chicago
    Inventors: Amy Flor, Ryan Duggan, Stephen Kron
  • Publication number: 20150344937
    Abstract: Methods and compositions for quantitative immunoassays are provided, in which ligand-conjugated probes are used to label samples and ligand-surfaced microspheres are used as quantitative reference standards. Certain embodiments provide a method of quantitative flow cytometry where ligands are oligonucleotides, and a sample comprising one or more cells is contacted with a hybridized antibody::fluorophore labeled targeting construct to label the cells, and the labeled cells are analyzed. In some embodiments, a population of quantitative labeled oligospheres labeled with the same fluorescent label as the cells is analyzed using the flow cytometer and used to create a quantitative standard curve of cytometer intensity versus molecules fluorescent label per oligosphere event. A standard curve trendline is established and used to determine the molecules of fluorescent label per cellular event for the antigen-positive cell populations.
    Type: Application
    Filed: June 14, 2013
    Publication date: December 3, 2015
    Inventors: Amy Flor, Ryan Duggan, Stephen Kron
  • Publication number: 20150024008
    Abstract: Disclosed are cancer vaccines comprising senescent cells and methods of using and preparing the vaccines.
    Type: Application
    Filed: November 21, 2012
    Publication date: January 22, 2015
    Inventors: Stephen Kron, Ralph R. Weichselbaum, Elena Efimova, Yuru Meng, Amy Flor
  • Patent number: 8445481
    Abstract: The present disclosure provides novel compounds of the formula (I): wherein R0, R1, R2, R3, R4, R5, and R6 are as defined in the detailed description. Two preferred compounds of formulae (IX) and (X) are disclosed. Also disclosed are uses of the disclosed compounds, for example, in regulating glucose transport and in inhibiting acetyl coenzyme A carboxylase.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: May 21, 2013
    Assignee: The University of Chicago
    Inventors: Sergey A. Kozmin, Jiayue Cui, Robert Haselkorn, Piotr Gornicki, Olesya Ulanovskaya, Stephen Kron
  • Publication number: 20100035892
    Abstract: The present disclosure provides novel compounds of the formula (I): wherein R0, R1, R2, R3, R4, R5, and R6 are as defined in the detailed description. Two preferred compounds of formulae (IX) and (X) are disclosed.
    Type: Application
    Filed: August 19, 2009
    Publication date: February 11, 2010
    Inventors: Sergey A. Kozmin, Jiayue Cui, Robert Haselkorn, Piotr Gornicki, Olesya Ulanovskaya, Stephen Kron
  • Publication number: 20070111273
    Abstract: Disclosed are a polyacrylamide-based method of fabricating surface-bound peptide and protein arrays, the arrays themselves, and a method of using the arrays to detect proteins and to measure their concentration, binding affinity, and kinetics. Peptides, proteins, fusion proteins, protein complexes, and the like, are labeled with an acrylic moiety and attached to acrylic-functionalized glass surfaces through a copolymerization with acrylic monomer. The specific attachment of GST-green fluorescent protein (GFP) fusion protein was more than 7-fold greater than the nonspecific attachment of non-acrylic labeled GST-GFP. Surface-attached GST-GFP (0.32 ng /mm2) was detectable by direct measurement of GFP fluorescence and this lower detection limit was reduced to 0.080 ng /mm2 using indirect antibody-based detection. The polyacrylamide-based surface attachment strategy was also used to measure the kinetics of substrate phosphorylation by the kinase c-Src.
    Type: Application
    Filed: February 24, 2005
    Publication date: May 17, 2007
    Inventors: Shawn Brueggemeier, Stephen Kron, Sean Palecek
  • Publication number: 20060121535
    Abstract: Disclosed are a polyacrylamide-based method of fabricating surface-bound peptide and protein arrays, the arrays themselves, and a method of using the arrays to detect biomolecules and to measure their concentration, binding affinity, and kinetics. Peptides, proteins, fusion proteins, protein complexes, nucleic acids, and the like, are labeled with an acrylic moiety and attached to acrylic-functionalized glass surfaces through a copolymerization with acrylic monomer. The specific attachment of GST-green fluorescent protein (GFP) fusion protein was more than 7-fold greater than the nonspecific attachment of non-acrylic labeled GST-GFP. Surface-attached GST-GFP (0.32 ng/mm2) was detectable by direct measurement of GFP fluorescence and this lower detection limit was reduced to 0.080 ng/mm2 using indirect antibody-based detection. The polyacrylamide-based surface attachment strategy was also used to measure the kinetics of substrate phosphorylation by the kinase c-Src.
    Type: Application
    Filed: December 16, 2005
    Publication date: June 8, 2006
    Inventors: Shawn Brueggemeier, Stephen Kron, Sean Palecek, Laurie Parker, Stephen Kent
  • Publication number: 20060088867
    Abstract: The present invention pertains to devices comprising at least one purification unit, used to purify and/or concentrate a target molecule contained within a test sample. Typically, the target molecule in a test sample will be a nucleic acid. These purified nucleic acids can be used in a variety of ways, including being subjected to nucleotide sequence analysis. Methods of using the devices and kits containing the devices are also provided.
    Type: Application
    Filed: October 15, 2005
    Publication date: April 27, 2006
    Inventors: Lawrence Weir, Christopher Adams, T. Boles, Rahul Dhanda, Stephen Kron
  • Publication number: 20050079519
    Abstract: Methods of detecting target molecules using electrophoresis and media containing immobilized capture are described.
    Type: Application
    Filed: July 9, 2004
    Publication date: April 14, 2005
    Inventors: Truett Boles, Andrew Muir, Stephen Kron, Ezra Abrams