Patents Assigned to Roche Operations Ltd.
  • System and method for coding information on a biosensor test strip
    Patent number: 7645421
    Abstract: The present invention provides a test strip for measuring a concentration of an analyte of interest in a biological fluid, wherein the test strip may be encoded with information that can be read by a test meter into which the test strip is inserted.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: January 12, 2010
    Assignees: Roche Diagnostics Operations, Inc., Roche Operations, Ltd.
    Inventor: Henning Groll
  • System and method for coding information on a biosensor test strip
    Patent number: 7604721
    Abstract: The present invention provides a test strip for measuring a concentration of an analyte of interest in a biological fluid, wherein the test strip may be encoded with information that can be read by a test meter into which the test strip is inserted.
    Type: Grant
    Filed: June 18, 2004
    Date of Patent: October 20, 2009
    Assignees: Roche Diagnostics Operations, Inc., Roche Operations, Ltd.
    Inventors: Henning Groll, Michael J. Celentano
  • System and method for analyte measurement employing maximum dosing time delay
    Patent number: 7597793
    Abstract: A method of measuring an analyte in a biological fluid comprises applying an excitation signal having a DC component and an AC component. The AC and DC responses are measured; a corrected DC response is determined using the AC response; and a concentration of the analyte is determined based upon the corrected DC response. Other methods and devices are disclosed.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: October 6, 2009
    Assignees: Roche Operations Ltd., Roche Diagnostics Operations, Inc.
    Inventors: David W. Burke, Lance S. Kuhn
  • System and method for quality assurance of a biosensor test strip
    Patent number: 7569126
    Abstract: The present invention provides a test strip for measuring a signal of interest in a biological fluid when the test strip is mated to an appropriate test meter, wherein the test strip and the test meter include structures to verify the integrity of the test strip traces, to measure the parasitic resistance of the test strip traces, and to provide compensation in the voltage applied to the test strip to account for parasitic resistive losses in the test strip traces.
    Type: Grant
    Filed: October 8, 2004
    Date of Patent: August 4, 2009
    Assignees: Roche Diagnostics Operations, Inc., Roche Operations Ltd.
    Inventors: Michael J. Celentano, Henning Groll, James L. Pauley, Steven K. Moore
  • Electrode design for biosensor
    Patent number: 7556723
    Abstract: A test strip for measuring a signal of interest in a biological fluid when the test strip is mated to an appropriate test meter, wherein the test strip and the test meter include structures to verify the integrity of the test strip traces, to measure the parasitic resistance of the test strip traces, and to provide compensation in the voltage applied to the test strip to account for parasitic resistive losses in the test strip traces. In addition, conductive traces are positioned to ensure structural interrogation of all electrodes and traces present upon the test strip.
    Type: Grant
    Filed: January 12, 2005
    Date of Patent: July 7, 2009
    Assignees: Roche Diagnostics Operations, Inc., Roche Operations Ltd.
    Inventors: Tom Funke, Abner D. Joseph, Randall K. Riggles
  • System and method for determining a temperature during analyte measurement
    Patent number: 7494816
    Abstract: A method of measuring an analyte in a biological fluid comprises applying an excitation signal having a DC component and an AC component. The AC and DC responses are measured; a corrected DC response is determined using the AC response; and a concentration of the analyte is determined based upon the corrected DC response. Other methods and devices are disclosed.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: February 24, 2009
    Assignees: Roche Diagnostic Operations, Inc., Roche Operations Ltd.
    Inventors: David W. Burke, Lance S. Kuhn, Terry A. Beaty, Vladimir Svetnik
  • System and method for determining an abused sensor during analyte measurement
    Patent number: 7488601
    Abstract: A method of measuring an analyte in a biological fluid comprises applying an excitation signal having a DC component and an AC component. The AC and DC responses are measured; a corrected DC response is determined using the AC response; and a concentration of the analyte is determined based upon the corrected DC response. Other methods and devices are disclosed.
    Type: Grant
    Filed: October 17, 2003
    Date of Patent: February 10, 2009
    Assignees: Roche Diagnostic Operations, Inc., Roche Operations Ltd.
    Inventors: David W. Burke, Lance S. Kuhn, James Maxwell