Patents by Inventor John Christopher Harper

John Christopher Harper 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).

  • Battery monitoring and testing system and methods thereof
    Patent number: 11262412
    Abstract: Systems and methods of monitoring and testing a battery module, including generating Electrochemical Impedance Spectra (EIS) of one or more battery modules, fitting the EIS spectra to an equivalent circuit model to establish equivalent circuit fit parameters, measuring an open circuit voltage of the one or more battery modules, measuring a temperature of the one or more battery modules, combining the EIS equivalent circuit fit parameters with measured open circuit and temperature values to determine weighting parameters of the equivalent circuit fit parameters, applying the weighting parameters to the equivalent circuit fit parameters to generate weighted equivalent circuit fit parameters, and generating a state-of-health (SoH) measurement of the one or more battery modules based on the weighted equivalent circuit fit parameters.
    Type: Grant
    Filed: April 13, 2020
    Date of Patent: March 1, 2022
    Assignee: Advanced Measurement Technology, Inc.
    Inventors: John Christopher Harper, Oliver James Curnick, Jonathan Edward Harrisson Sansom
  • BATTERY MONITORING AND TESTING SYSTEM AND METHODS THEREOF
    Publication number: 20200386820
    Abstract: Systems and methods of monitoring and testing a battery module, including generating Electrochemical Impedance Spectra (EIS) of one or more battery modules, fitting the EIS spectra to an equivalent circuit model to establish equivalent circuit fit parameters, measuring an open circuit voltage of the one or more battery modules, measuring a temperature of the one or more battery modules, combining the EIS equivalent circuit fit parameters with measured open circuit and temperature values to determine weighting parameters of the equivalent circuit fit parameters, applying the weighting parameters to the equivalent circuit fit parameters to generate weighted equivalent circuit fit parameters, and generating a state-of-health (SoH) measurement of the one or more battery modules based on the weighted equivalent circuit fit parameters.
    Type: Application
    Filed: April 13, 2020
    Publication date: December 10, 2020
    Inventors: John Christopher Harper, Oliver James Curnick, Jonathan Edward Harrison Sansom
  • Electrochemical cell
    Patent number: 7179355
    Abstract: Disclosed is an electrochemical sensor for measuring carbon monoxide in a gas sample, the sensor comprising a working electrode including a working electrode catalyst, and a diffusion restriction means for restricting the diffusion of the gas sample to the working electrode; wherein the working electrode catalyst comprises oxidised platinum having a hydrogen cross-sensitivity of less than 10% and being present in an amount such that the activity capacity is at least 5.
    Type: Grant
    Filed: February 19, 2003
    Date of Patent: February 20, 2007
    Assignee: Alphasense Limited
    Inventor: John Christopher Harper
  • Electrochemical cell
    Publication number: 20030209442
    Abstract: Disclosed is an electrochemical sensor for measuring carbon monoxide in a gas sample, the sensor comprising a working electrode including a working electrode catalyst, and a diffusion restriction means for restricting the diffusion of the gas sample to the working electrode; wherein the working electrode catalyst comprises oxidised platinum having a hydrogen cross-sensitivity of less than 10% and being present in an amount such that the activity capacity is at least 5.
    Type: Application
    Filed: February 19, 2003
    Publication date: November 13, 2003
    Applicant: Alphsense Limited
    Inventor: John Christopher Harper