Patents by Inventor Rahat HASAN

Rahat HASAN 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 performance assessment method and apparatus
    Patent number: 11415634
    Abstract: In one aspect the invention provides an assessment apparatus which includes two terminal connectors configured to electrically connect the assessment apparatus to the positive and negative terminals of a battery being assessed. The apparatus also includes a response measurement system configured to measure the terminal voltage and current of the battery when supplied with at least one alternating test current having a frequency less than 1 Hz and/or less than an impedance transition frequency associated with the battery being assessed. Also provided is a processor in communication with the response measurement system and being configured to output a performance assessment indicator for the battery being assessed by calculating at least one impedance for the battery using terminal voltage and current measurements communicated by the response measurement system.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: August 16, 2022
    Assignee: Waikatolink Limited
    Inventors: Jonathan Brereton Scott, Peter Scott Vallack Single, Rahat Hasan
  • BATTERY PERFORMANCE ASSESSMENT METHOD AND APPARATUS
    Publication number: 20200371164
    Abstract: In one aspect the invention provides an assessment apparatus which includes two terminal connectors configured to electrically connect the assessment apparatus to the positive and negative terminals of a battery being assessed. The apparatus also includes a response measurement system configured to measure the terminal voltage and current of the battery when supplied with at least one alternating test current having a frequency less than 1 Hz and/or less than an impedance transition frequency associated with the battery being assessed. Also provided is a processor in communication with the response measurement system and being configured to output a performance assessment indicator for the battery being assessed by calculating at least one impedance for the battery using terminal voltage and current measurements communicated by the response measurement system.
    Type: Application
    Filed: May 13, 2020
    Publication date: November 26, 2020
    Applicant: Waikatolink Limited
    Inventors: Jonathan Brereton SCOTT, Peter Scott Vallack SINGLE, Rahat HASAN