Patents by Inventor David Milton Hadley

David Milton Hadley 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).

  • Methods for quantifying the morphology and amplitude of cardiac action potential alternans
    Patent number: 7174204
    Abstract: Methods and apparatus for determining T-wave alternan signatures (i.e., morphology and polarity) derived from a physiologic signal representative of a subject's heart activity; assessing changes in the myocardium Action Potential (“AP”) through analysis of the alternan signature derived from a physiologic signal representative of a subject's heart activity; and/or assessing spatial disassociation of alternan characteristics that are likely associated with the initiation of re-entrant arrhythmias.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: February 6, 2007
    Assignee: Cardiac Science Corporation
    Inventors: David Milton Hadley, Mustafa Hikmet Sagiroglu
  • Methods for quantifying the morphology and amplitude of cardiac action potential alternans
    Patent number: 7167745
    Abstract: Methods and apparatus for determining T-wave alternan signatures (i.e., morphology and polarity) derived from a physiologic signal representative of a subject's heart activity; assessing changes in the myocardium Action Potential (“AP”) through analysis of the alternan signature derived from a physiologic signal representative of a subject's heart activity; and/or assessing spatial disassociation of alternan characteristics that are likely associated with the initiation of re-entrant arrhythmias.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: January 23, 2007
    Assignee: Quinton Cardiology, Inc.
    Inventors: David Milton Hadley, Mustafa Hikmet Sagiroglu
  • Methods for quantifying the morphology and amplitude of cardiac action potential alternans
    Patent number: 7167744
    Abstract: Methods and apparatus for determining T-wave alternan signatures (i.e., morphology and polarity) derived from a physiologic signal representative of a subject's heart activity; assessing changes in the myocardium Action Potential (“AP”) through analysis of the alternan signature derived from a physiologic signal representative of a subject's heart activity; and/or assessing spatial disassociation of alternan characteristics that are likely associated with the initiation of re-entrant arrhythmias.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: January 23, 2007
    Assignee: Cardiac Science Corporation
    Inventors: David Milton Hadley, Mustafa Hikmet Sagiroglu
  • Methods for quantifying the morphology and amplitude of cardiac action potential alternans
    Patent number: 7136694
    Abstract: Methods and apparatus for determining T-wave alternan signatures (i.e., morphology and polarity) derived from a physiologic signal representative of a subject's heart activity; assessing changes in the myocardium Action Potential (“AP”) through analysis of the alternan signature derived from a physiologic signal representative of a subject's heart activity; and/or assessing spatial disassociation of alternan characteristics that are likely associated with the initiation of re-entrant arrhythmias.
    Type: Grant
    Filed: March 30, 2004
    Date of Patent: November 14, 2006
    Assignee: Cardiac Science Corporation
    Inventors: David Milton Hadley, Mustafa Hikmet Sagiroglu