Patents by Inventor Jixiang Liu

Jixiang Liu 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: 7169922
    Abstract: The present invention describes novel dyes, including coumarins, rhodamines, and rhodols that incorporate additional fused aromatic rings. The dyes of the invention absorb at a longer wavelength than structurally similar dyes that do not possess the fused aromatic rings. Many of the dyes of the invention are useful fluorescent dyes. The invention includes chemically reactive dyes, dye-conjugates, and the use of such dyes in staining samples and detecting ligands or other analytes.
    Type: Grant
    Filed: November 13, 2003
    Date of Patent: January 30, 2007
    Assignee: Invitrogen Corporation
    Inventors: Zhenjun Diwu, Jixiang Liu, Kyle Gee
  • Patent number: 7102005
    Abstract: The present invention relates to phosphate-binding compounds that find use in binding, detecting and isolating phosphorylated target molecules including the subsequent identification of target molecules that interact with phosphorylated target molecules or molecules capable of being phosphorylated. A binding solution is provide that comprises a phosphate-binding compound, an acid and a metal ion wherein the metal ion simultaneously interacts with an exposed phosphate group on a target molecule and the metal chelating moiety of the phosphate-binding compound forming a bridge between the phosphate-binding compound and a phosphorylated target molecule resulting in a ternary complex. The binding solution of the present invention finds use in binding and detecting immobilized and solubilized phosphorylated target molecules, isolation of phosphorylated target molecules from a complex mixture and aiding in proteomic analysis wherein kinase and phosphatase substrates and enzymes can be identified.
    Type: Grant
    Filed: May 2, 2003
    Date of Patent: September 5, 2006
    Assignee: Molecular Probes, Inc.
    Inventors: Brian Agnew, Joseph Beechem, Kyle Gee, Richard Haugland, Jixiang Liu, Vladimir Martin, Wayne Patton, Thomas Steinberg
  • Publication number: 20050214807
    Abstract: The present invention provides fluorogenic probes and corresponding fluorescent compounds, methods of using the probes, compounds and kits that include the probes.
    Type: Application
    Filed: November 19, 2004
    Publication date: September 29, 2005
    Inventors: Iain Johnson, Wai-Yee Leung, Jixiang Liu, Brian Patch
  • Publication number: 20050123935
    Abstract: The invention provides a novel class of reactive fluorescent agents that are based on a pyrene sulfonic acid nucleus. The agents are readily incorporated into conjugates with other species by reacting the reactive group with a group of complementary reactivity on the other species of the conjugate. Also provided are methods of using the compounds of the invention to detect and/or quantify an analyte in a sample. In an exemplary embodiment, the invention provides multi-color assays incorporating the compounds of the invention.
    Type: Application
    Filed: December 9, 2003
    Publication date: June 9, 2005
    Inventors: Richard Haugland, Wai-Yee Leung, Jixiang Liu
  • Publication number: 20050096315
    Abstract: The invention provides novel fluorinated resorufin compounds that are of use in a variety of assay formats. Also provided are methods of using the compounds and kits that include a compound of the invention and instructions detailing the use of the compound in one or more assay formats.
    Type: Application
    Filed: November 1, 2004
    Publication date: May 5, 2005
    Inventors: Robert Batchelor, Yue Ge, Kyle Gee, Iain Johnson, Wai-Yee Leung, Jixiang Liu, Brian Patch, Peter Smalley, Thomas Steinberg
  • Publication number: 20040147747
    Abstract: The present invention describes novel dyes, including coumarins, rhodamines, and rhodols that incorporate additional fused aromatic rings. The dyes of the invention absorb at a longer wavelength than structurally similar dyes that do not possess the fused aromatic rings. Many of the dyes of the invention are useful fluorescent dyes. The invention includes chemically reactive dyes, dye-conjugates, and the use of such dyes in staining samples and detecting ligands or other analytes.
    Type: Application
    Filed: November 13, 2003
    Publication date: July 29, 2004
    Applicant: Molecular Probes, Inc.
    Inventors: Zhenjun Diwu, Jixiang Liu, Kyle Gee
  • Publication number: 20040038306
    Abstract: The present invention relates to phosphate-binding compounds that find use in binding, detecting and isolating phosphorylated target molecules including the subsequent identification of target molecules that interact with phosphorylated target molecules or molecules capable of being phosphorylated. A binding solution is provide that comprises a phosphate-binding compound, an acid and a metal ion wherein the metal ion simultaneously interacts with an exposed phosphate group on a target molecule and the metal chelating moiety of the phosphate-binding compound forming a bridge between the phosphate-binding compound and a phosphorylated target molecule resulting in a ternary complex. The binding solution of the present invention finds use in binding and detecting immobilized and solubilized phosphorylated target molecules, isolation of phosphorylated target molecules from a complex mixture and aiding in proteomic analysis wherein kinase and phosphatase substrates and enzymes can be identified.
    Type: Application
    Filed: May 2, 2003
    Publication date: February 26, 2004
    Inventors: Brian Agnew, Joseph Beechem, Kyle Gee, Richard Haugland, Jixiang Liu, Vladimir Martin, Wayne Patton, Thomas Steinberg