Patents by Inventor Troy S. Bergstedt

Troy S. Bergstedt 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).

  • Fluorescent polymer-QTL approach to biosensing
    Publication number: 20040241768
    Abstract: A chemical composition including a moiety comprising a quencher (Q), a tethering element (T), and a ligand (L) that associates with and quenches a fluorescent polymer is disclosed. When an analyte sample is introduced, the ligand (L) binds to a target biological agent if it is present, thereby causing the QTL molecule to separate from the fluorescent polymer resulting in an increase in detected fluorescence. The same chemistry is advantageously employed in a competitive assay. An electric field can also be applied to separate the QTL molecule from the fluorescent polymer. A method for detecting targets for these methods are also disclosed.
    Type: Application
    Filed: March 29, 2004
    Publication date: December 2, 2004
    Inventors: David G. Whitten, Duncan W. McBranch, Robert Jones, Troy S. Bergstedt
  • Fluorescent polymer-QTL approach to biosensing
    Patent number: 6743640
    Abstract: A chemical composition including a moiety comprising a quencher (Q), a tethering element (T), and a ligand (L) that associates with and quenches a fluorescent polymer is disclosed. When an analyte sample is introduced, the ligand (L) binds to a target biological agent if it is present, thereby causing the QTL molecule to separate from the fluorescent polymer resulting in an increase in detected fluorescence. The same chemistry is advantageously employed in a competitive assay. An electric field can also be applied to separate the QTL molecule from the fluorescent polymer. A method for detecting targets for these methods are also disclosed.
    Type: Grant
    Filed: May 8, 2001
    Date of Patent: June 1, 2004
    Assignee: QTL Biosystems LLC
    Inventors: David G. Whitten, Duncan W. McBranch, Robert Jones, Troy S. Bergstedt
  • Fluorescent polymer-QTL approach to biosensing
    Publication number: 20020051985
    Abstract: A chemical composition including a moiety comprising a quencher (Q), a tethering element (T), and a ligand (L) that associates with and quenches a fluorescent polymer is disclosed. When an analyte sample is introduced, the ligand (L) binds to a target biological agent if it is present, thereby causing the QTL molecule to separate from the fluorescent polymer resulting in an increase in detected fluorescence. The same chemistry is advantageously employed in a competitive assay. An electric field can also be applied to separate the QTL molecule from the fluorescent polymer. A method for detecting targets for these methods are also disclosed.
    Type: Application
    Filed: May 8, 2001
    Publication date: May 2, 2002
    Inventors: David G. Whitten, Duncan W. McBranch, Robert Jones, Troy S. Bergstedt