Patents by Inventor Timothy Ohara

Timothy Ohara 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).

  • Publication number: 20080073207
    Abstract: Mediator stabilized reagent compositions and methods for their use in electrochemical analyte determination assays are provided. The subject reagent compositions include an enzyme, a redox mediator and a mediator-stabilizing buffer. Optionally, the reagent compositions may further include one or more of a wetting agent, detergent, enzyme cofactor and combinations thereof. Also provided are electrochemical test strips that include the subject reagent compositions, systems and kits that include the same as well as methods for using the same in analyte detection assays. The subject invention finds use in a variety of different applications, including glucose concentration determination applications.
    Type: Application
    Filed: October 31, 2007
    Publication date: March 27, 2008
    Inventors: Maria Teodorczyk, Ronald Chatelier, Alastair Hodges, Timothy Ohara, Remy Dato
  • Patent number: 7291256
    Abstract: Mediator stabilized reagent compositions and methods for their use in electrochemical analyte determination assays are provided. The subject reagent compositions include an enzyme, a redox mediator and a mediator-stabilizing buffer. Optionally, the reagent compositions may further include one or more of a wetting agent, detergent, enzyme cofactor and combinations thereof. Also provided are electrochemical test strips that include the subject reagent compositions, systems and kits that include the same as well as methods for using the same in analyte detection assays. The subject invention finds use in a variety of different applications, including glucose concentration determination applications.
    Type: Grant
    Filed: September 12, 2002
    Date of Patent: November 6, 2007
    Assignee: Lifescan, Inc.
    Inventors: Maria Teodorczyk, Ronald C. Chatelier, Alastair McIndoe Hodges, Timothy Ohara, Remy Dato
  • Publication number: 20060200021
    Abstract: A flexible diagnostic device has a measurement cell that is sandwiched between the conductive surfaces of two conductive-coated insulating layers. At least one of the conductive surfaces is scored with an insulating pattern, so that the flow of a conductive fluid sample into the cell can be monitored.
    Type: Application
    Filed: May 2, 2006
    Publication date: September 7, 2006
    Inventors: Robert Shartle, Timothy Ohara, Mahyar Kermani
  • Publication number: 20050161344
    Abstract: The present invention provides methods and systems for passively and automatically detecting the presence of a sample (the “sample detection phase”) upon application of the sample to a biosensor, identifying the sample detection time and then initiating the measurement of a targeted characteristic, e.g., the concentration of one or more analytes, of the sample (the “measurement phase”), immediately upon sample detection. The subject methods and systems do not employ or involve the application of an electrical signal from an external source to the electrochemical cell for purposes of performing the sample detection phase and are, thus, less complicated and involve fewer steps and components.
    Type: Application
    Filed: March 21, 2005
    Publication date: July 28, 2005
    Inventors: Mahyar Kermani, Timothy Ohara, Maria Teodorczyk
  • Patent number: 6872299
    Abstract: The present invention provides methods and systems for passively and automatically detecting the presence of a sample (the “sample detection phase”) upon application of the sample to a biosensor, identifying the sample detection time and then initiating the measurement of a targeted characteristic, e.g., the concentration of one or more analytes, of the sample (the “measurement phase”), immediately upon sample detection. The subject methods and systems do not employ or involve the application of an electrical signal from an external source to the electrochemical cell for purposes of performing the sample detection phase and are, thus, less complicated and involve fewer steps and components.
    Type: Grant
    Filed: December 10, 2001
    Date of Patent: March 29, 2005
    Assignee: LifeScan, Inc.
    Inventors: Mahyar Z. Kermani, Timothy Ohara, Maria Teodorczyk
  • Publication number: 20050059872
    Abstract: A flexible diagnostic device has a measurement cell that is sandwiched between the conductive surfaces of two conductive-coated insulating layers. At least one of the conductive surfaces is scored with an insulating pattern, so that the flow of a conductive fluid sample into the cell can be monitored.
    Type: Application
    Filed: October 28, 2004
    Publication date: March 17, 2005
    Inventors: Robert Shartle, Timothy Ohara, Mahyar Kermani
  • Publication number: 20030106809
    Abstract: The present invention provides methods and systems for passively and automatically detecting the presence of a sample (the “sample detection phase”) upon application of the sample to a biosensor, identifying the sample detection time and then initiating the measurement of a targeted characteristic, e.g., the concentration of one or more analytes, of the sample (the “measurement phase”), immediately upon sample detection. The subject methods and systems do not employ or involve the application of an electrical signal from an external source to the electrochemical cell for purposes of performing the sample detection phase and are, thus, less complicated and involve fewer steps and components.
    Type: Application
    Filed: December 10, 2001
    Publication date: June 12, 2003
    Inventors: Mahyar Z. Kermani, Timothy Ohara, Maria Teodorczyk
  • Publication number: 20020125145
    Abstract: Methods and devices for determining the concentration of an analyte in a physiological sample are provided. In the subject methods, the physiological sample is introduced into an electrochemical cell having a working and reference electrode. A first electric potential is applied to the cell and the resultant cell current over a period of time is measured to determine a first time-current transient. A second electric potential of opposite polarity is then applied and a second a time-current transient is determined. The preliminary concentration of the analyte is then calculated from the first and/or second time-current transient. This preliminary analyte concentration less a background value is then multiplied by a hematocrit correction factor to obtain the analyte concentration in the sample, where the hematocrit correction factor is a function of the preliminary analyte concentration and the variable &ggr; of the electrochemical cell.
    Type: Application
    Filed: May 10, 2002
    Publication date: September 12, 2002
    Inventors: Timothy Ohara, Mahyar Z. Kermani