Patents by Inventor Douglas Robert Evans

Douglas Robert Evans 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).

  • Agglutination assay
    Patent number: 9201065
    Abstract: The invention relates to agglutination assays and related kits, reagents and devices. In particular methods of assaying small analytes having few epitopes are disclosed, by means of using hub moieties to which multiple analytes may be bound by a first epitope, together with a further moiety capable of binding a second analyte epitope and which is also capable of binding to a detectable particle. Stable agglutinated complexes may be so formed, which may used as the basis for various assay formats.
    Type: Grant
    Filed: November 13, 2006
    Date of Patent: December 1, 2015
    Assignee: Platform Diagnostics Limited
    Inventors: Carolyn Jennifer Ruddell, Gerald John Allen, Douglas Robert Evans, Elizabeth Burke
  • SATURATION ASSAY
    Publication number: 20150212080
    Abstract: A modified form of saturation assay is provided that is based on the measurement of a free or unbound labelled reagent fraction (such that there is an increase in signal in the presence of analyte) and employs trapping zones to concentrate said unbound or free labelled faction to avoid loss of sensitivity. Preferably the assay is a membrane assay.
    Type: Application
    Filed: April 9, 2015
    Publication date: July 30, 2015
    Inventors: Douglas Robert EVANS, Gerald John ALLEN, Carolyn Jennifer RUDDELL
  • Saturation assay
    Patent number: 9028771
    Abstract: The invention provides a modified form of saturation assay, which is based on the measurement of a free or unbound labelled reagent fraction (such that there is an increase in signal in the presence of analyte) and employs trapping zones to concentrate said unbound or free labelled fraction to avoid loss of sensitivity. Preferably, the assay is a membrane assay.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: May 12, 2015
    Assignee: Platform Diagnostics Limited
    Inventors: Douglas Robert Evans, Gerald John Allen, Carolyn Jennifer Ruddell
  • Saturation Assay
    Publication number: 20100062544
    Abstract: The invention provides a modified form of saturation assay, which is based on the measurement of a free or unbound labelled reagent fraction (such that there is an increase in signal in the presence of analyte) and employs trapping zones to concentrate said unbound or free labelled fraction to avoid loss of sensitivity. Preferably, the assay is a membrane assay.
    Type: Application
    Filed: November 9, 2007
    Publication date: March 11, 2010
    Applicant: PLATFORM DIAGNOSTICS LIMITED
    Inventors: Douglas Robert Evans, Gerald John Allen, Carolyn Jennifer Ruddell
  • Agglutination Assay
    Publication number: 20080248504
    Abstract: The invention relates to agglutination assays and related kits, reagents and devices. In particular methods of assaying small analytes having few epitopes are disclosed, by means of using hub moieties to which multiple analytes may be bound by a first epitope, together with a further moiety capable of binding a second analyte epitope and which is also capable of binding to a detectable particle. Stable agglutinated complexes may be so formed, which may used as the basis for various assay formats.
    Type: Application
    Filed: November 13, 2006
    Publication date: October 9, 2008
    Applicant: Platform Diagnostics Limited
    Inventors: Carolyn Jennifer Ruddell, Gerald John Allen, Douglas Robert Evans, Elizabeth Burke