Patents by Inventor Michael Catt

Michael Catt 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: 6451619
    Abstract: Methods, devices and test kits for monitoring the ovulation cycle, involve testing the body fluid, e.g. urinary, concentration of one or more analytes. Preferably estrone-3-glucuronide and luteinizing hormone are both measured, and a reference concentration for E3G is established at about day 6 of the current cycle. Preferably, disposable testing devices are used, in conjunction with a relatively permanent electronic reader/monitor. The number of “daily” tests required per month can be minimized.
    Type: Grant
    Filed: September 22, 1995
    Date of Patent: September 17, 2002
    Assignee: Inverness Medical Switzerland GmbH
    Inventors: Michael Catt, Carole R Cunningham, Paul HC Mundill, Michael E Prior, Stewart Wilson, Zhi G Zhang
  • Patent number: 6403380
    Abstract: A method of providing warning of the onset of the fertile phase of the human ovulation cycle, involving measurement in absolute or relative terms of the body fluid concentration of an analyte such as estradiol or a metabolite thereof wherein if in the current cycle a concentration measurement conducted at about the termination of menses reveals a body fluid concentration that is typical of that found in the body fluid of an average human female subject about 3 days prior to the time of ovulation during a 28-day cycle, the current cycle is immediately declared to be in its fertile phase. Where the a analyte is E3G, the E3G concentration measurement is conducted on at least one or numerical days 4 to 7 of the current cycle, counting from the onset of menses, and the fertile phase is declared immediately if the E3G measurement reveals a concentration equal to or greater than a threshold concentration chosen in the range of about 25 to about 35 ng/ml.
    Type: Grant
    Filed: February 18, 1997
    Date of Patent: June 11, 2002
    Assignee: Inverness Medical Switzerland GmbH
    Inventors: Michael Catt, Keith May
  • Patent number: 6235241
    Abstract: An assay result reader, for use in conjunction with an assay device comprising a porous liquid-permeable carrier in the form of a strip or sheet through the thickness of which electromagnetic radiation is transmissible, the carrier including a detection zone in which an assay result is revealed by specific binding of a detectable material directly or indirectly to a binding agent immobilized in the detection zone, detection of the detectable material being effected by determining the extent to which electromagnetic radiation transmitted through the thickness of said carrier is attenuated by the presence of the detectable material bound in the detection zone.
    Type: Grant
    Filed: May 14, 1998
    Date of Patent: May 22, 2001
    Assignee: Unipath Limited
    Inventors: Michael Catt, Paul Henry Mundill, Michael Evans Prior
  • Patent number: 6234974
    Abstract: A method of monitoring the status of a current ovulation cycle of an individual human female subject, involving testing of the body fluid concentration of an analyte of significance in relation to the status of the ovulation cycle, such as urinary E3G, during at least part of the pre-ovulation phase of the current ovulation cycle of the individual subject, and identification from the results of such testing an analyte concentration change indicative of imminent ovulation, relative to an analyte concentration reference value that has been adapted to the individual human subject on the basis of analyte concentration test data obtained from the individual human subject during one or more previous ovulation cycles.
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: May 22, 2001
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Michael Catt, John Coley, Paul J Davis
  • Patent number: 5869972
    Abstract: A testing device for qualitatively or quantitatively sensing an electrochemical or analogous reaction at the surface of a test strip (46), the current flowing or charge accumulated at the test strip being processed by electronics (50) to generate a current signal suitable for activating a display (52) typically in the form of a thermochromic layer.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: February 9, 1999
    Inventors: Brian Jeffrey Birch, Edward Baginski, Nicholas Andrew Morris, Catherine Lovell, Michael Catt, Miles Hugh Eddowes
  • Patent number: 5467778
    Abstract: A method of monitoring the status of a current ovulation cycle of an individual human female subject, involving testing of the body fluid concentration of an analyte of significance in relation to the status of the ovulation cycle, such as urinary E3G, during at least part of the pre-ovulation phase of the current ovulation cycle of the individual subject, and identification from the results of such testing an analyte concentration change indicative of imminent ovulation, relative to an analyte concentration reference value that has been adapted to the individual human subject on the basis of analyte concentration test data obtained from the individual human subject during one or more previous ovulation cycles.
    Type: Grant
    Filed: August 20, 1993
    Date of Patent: November 21, 1995
    Assignee: Unilever Patent Holdings B.V.
    Inventors: Michael Catt, John Coley, Paul J. Davis