Patents by Inventor Lyle Middendorf

Lyle Middendorf 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: 20110065597
    Abstract: Methods are disclosed utilizing single-molecule proteomics with dynamic probes to accomplish a variety of protein analytic applications. A panel of probes, when used in combination, can resolve and quantify a proteome in a simple assay detecting transient binding to single protein targets.
    Type: Application
    Filed: July 21, 2010
    Publication date: March 17, 2011
    Applicant: LI-COR, INC.
    Inventors: John G.K. Williams, Lyle Middendorf, Jon Anderson, David Steffens, Harry Osterman, Daniel Grone
  • Patent number: 6448015
    Abstract: A method for detecting point mutations in DNA using a fluorescently labeled oligomeric probe and Forster resonance energy transfer (FRET) is disclosed. The selected probe is initially labeled at each end with a fluorescence dye, which act together as a donor/acceptor pair for FRET. The fluorescence emission from the dyes changes dramatically from the duplex stage, wherein the probe is hybridized to the complementary strand of DNA, to the single strand stage, when the probe is melted to become detached from the DNA. The change in fluorescence is caused by the dyes coming into closer proximity after melting occurs and the probe becomes detached from the DNA strand. The change in fluorescence emission as a function of temperature is used to calculate the melting temperature of the complex or Tm. In the case where there is a base mismatch between the probe and the DNA strand, indicating a point mutation, the Tm has been found to be significantly lower than the Tm for a perfectly match probe/stand duplex.
    Type: Grant
    Filed: April 23, 2001
    Date of Patent: September 10, 2002
    Assignee: Board of Regents of University of Nebraska
    Inventors: Lawrence J. Parkhurst, Kay M. Parkhurst, Lyle Middendorf
  • Publication number: 20010016323
    Abstract: A method for detecting point mutations in DNA using a fluorescently labeled oligomeric probe and Forster resonance energy transfer (FRET) is disclosed. The selected probe is initially labeled at each end with a fluorescence dye, which act together as a donor/acceptor pair for FRET. The fluorescence emission from the dyes changes dramatically from the duplex stage, wherein the probe is hybridized to the complementary strand of DNA, to the single strand stage, when the probe is melted to become detached from the DNA. The change in fluorescence is caused by the dyes coming into closer proximity after melting occurs and the probe becomes detached from the DNA strand. The change in fluorescence emission as a function of temperature is used to calculate the melting temperature of the complex or Tm. In the case where there is a base mismatch between the probe and the DNA strand, indicating a point mutation, the Tm has been found to be significantly lower than the Tm for a perfectly match probe/stand duplex.
    Type: Application
    Filed: April 23, 2001
    Publication date: August 23, 2001
    Applicant: Board of Regents of University of Nebraska
    Inventors: Lawrence J. Parkhurst, Kay M. Parkhurst, Lyle Middendorf
  • Patent number: 6248518
    Abstract: A method for detecting point mutations in DNA using a fluorescently labeled oligomeric probe and Forster resonance energy transfer (FRET) is disclosed. The selected probe is initially labeled at each end with a fluorescence dye, which act together as a donor/acceptor pair for FRET. The fluorescence emission from the dyes changes dramatically from the duplex stage, wherein the probe is hybridized to the complementary strand of DNA, to the single strand stage, when the probe is melted to become detached from the DNA. The change in fluorescence is caused by the dyes coming into closer proximity after melting occurs and the probe becomes detached from the DNA strand. The change in fluorescence emission as a function of temperature is used to calculate the melting temperature of the complex or Tm. In the case where there is a base mismatch between the probe and the DNA strand, indicating a point mutation, the Tm has been found to be significantly lower than the Tm for a perfectly match probelstand duplex.
    Type: Grant
    Filed: October 22, 1997
    Date of Patent: June 19, 2001
    Assignee: Board of Regents of University of Nebraska
    Inventors: Lawrence J. Parkhurst, Kay M. Parkhurst, Lyle Middendorf