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David Andrewes, John Worthington Attridge, David Griffiths, John Phillip Vessey, John Anthony Odell, Felix Fernando, Anthony Stevenson, Mark Gresswell, John Curtis, David Alan Percival: Device and apparatus for conducting an assay. Provalis Diagnostics, Hogan & Hartson, October 9, 2001: US06300142 (86 worldwide citation)

A apparatus for assaying glycated proteins and other analytes in biological samples such as blood, in which a sample is presented to the apparatus, includes an inlet port between moveable between first and second inlets, such that the inlet can be brought into liquid communication with each inlet in ...


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John Phillip Vessey, Adrian Richard Gray, David Percival: Whole blood assay. Quotient Diagnostics, May 17, 2011: US07943331

A method and apparatus to estimate the concentration of a target substance (e.g. Cholesterol or CRP) in the plasma component of awhole blood sample without the need to separate the red blood cells from the plasma prior to testing, thereby simplfying the design and construction of the test device. Th ...


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John Phillip Vessey, Adrian Richard Gray: Fluorescent assay. Quotient Diagnostics, Fox Rothschild, August 16, 2011: US07998742

A method and apparatus to estimate the concentration of a non-fluorescent substance (e.g. haemoglobin) in a fluorescent assay by separately estimating the non time dependent alteration attributed to inherent filter effects from the time dependent alteration caused by the assay chemistry. Such a meth ...


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John Phillip Vessey, Adrian Richard Gray, David Percival: Whole Blood Assay. Quotient Diagnostics, Fox Rothschild, March 25, 2010: US20100075338-A1

A method and apparatus to estimate the concentration of a target substance (e.g. Cholesterol or CRP) in the plasma component of awhole blood sample without the need to separate the red blood cells from the plasma prior to testing, thereby simplfying the design and construction of the test device. Th ...


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John Phillip Vessey, Adrian Richard Gray: Fluorescent Assay. Quotient Diagnostics, Fox Rothschild, July 9, 2009: US20090176309-A1

A method and apparatus to estimate the concentration of a non-fluorescent substance (e.g. haemoglobin) in a fluorescent assay by separately estimating the non time dependent alteration attributed to inherent filter effects from the time dependent alteration caused by the assay chemistry. Such a meth ...


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