Patents by Inventor Sunil Purushothaman

Sunil Purushothaman 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).

  • Sensing apparatus and method
    Patent number: 8698211
    Abstract: A method of observing reaction intermediaries during a chemical reaction and comprising detecting an electrical signal output from an ion sensitive field effect transistor exposed to said reaction, and monitoring the detected electrical signal to discriminate discrete fluctuations in the electrical signal, the discrete fluctuations indicating reaction intermediaries occurring during a chemical reaction.
    Type: Grant
    Filed: January 17, 2012
    Date of Patent: April 15, 2014
    Assignee: DNA Electronics Ltd.
    Inventors: Christofer Toumazou, Sunil Purushothaman
  • Sensing apparatus and method
    Patent number: 8685228
    Abstract: A sensing apparatus comprising an ion sensitive field effect transistor arranged to generate an electrical output signal in response to localized fluctuations of ionic charge at or adjacent the surface of the transistor, and means for detecting the electrical output signal from the ion sensitive field effect transistor, the localized fluctuations of ionic charge indicating events occurring during a chemical reaction.
    Type: Grant
    Filed: February 23, 2010
    Date of Patent: April 1, 2014
    Assignee: DNA Electronics Limited
    Inventors: Christofer Toumazou, Sunil Purushothaman
  • SENSING APPARATUS AND METHOD
    Publication number: 20120175252
    Abstract: A method of observing reaction intermediaries during a chemical reaction and comprising detecting an electrical signal output from an ion sensitive field effect transistor exposed to said reaction, and monitoring the detected electrical signal to discriminate discrete fluctuations in the electrical signal, the discrete fluctuations indicating reaction intermediaries occurring during a chemical reaction.
    Type: Application
    Filed: January 17, 2012
    Publication date: July 12, 2012
    Applicant: DNA ELECTRONICS LTD.
    Inventors: Christofer TOUMAZOU, Sunil Purushothaman
  • Sensing apparatus and method
    Patent number: 8114591
    Abstract: A method of observing reaction intermediaries during a chemical reaction and comprising detecting an electrical signal output from an ion sensitive field effect transistor exposed to said reaction, and monitoring the detected electrical signal to discriminate discrete fluctuations in the electrical signal, the discrete fluctuations indicating reaction intermediaries occurring during a chemical reaction.
    Type: Grant
    Filed: January 23, 2007
    Date of Patent: February 14, 2012
    Assignee: DNA Electronics Ltd.
    Inventors: Christofer Toumazou, Sunil Purushothaman
  • qPCR using solid-state sensing
    Patent number: 7888015
    Abstract: Use of a pH sensor comprising an ion-sensitive field effect transistor (ISFET) to perform real time detection/quantification of nucleic acid amplification, e.g. polymerase chain reaction (PCR) nucleic acid amplification, based on detection of protons released during the primer extension phase.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: February 15, 2011
    Assignee: DNA Electronics Ltd.
    Inventors: Christofer Toumazou, Sunil Purushothaman
  • Sensing Apparatus and Method
    Publication number: 20100255595
    Abstract: A method of observing reaction intermediaries during a chemical reaction and comprising detecting an electrical signal output from an ion sensitive field effect transistor exposed to said reaction, and monitoring the detected electrical signal to discriminate discrete fluctuations in the electrical signal, the discrete fluctuations indicating reaction intermediaries occurring during a chemical reaction.
    Type: Application
    Filed: January 23, 2007
    Publication date: October 7, 2010
    Applicant: DNA ELECTRONICS LTD.
    Inventors: Christofer Toumazou, Sunil Purushothaman
  • SENSING APPARATUS AND METHOD
    Publication number: 20100151479
    Abstract: A sensing apparatus comprising an ion sensitive field effect transistor arranged to generate an electrical output signal in response to localised fluctuations of ionic charge at or adjacent the surface of the transistor, and means for detecting the electrical output signal from the ion sensitive field effect transistor, the localised fluctuations of ionic charge indicating events occurring during a chemical reaction.
    Type: Application
    Filed: February 23, 2010
    Publication date: June 17, 2010
    Applicant: DNA Electronics Limited
    Inventors: Christofer TOUMAZOU, Sunil Purushothaman
  • Sensing apparatus and method
    Patent number: 7686929
    Abstract: A sensing apparatus comprising an ion sensitive field effect transistor arranged to generate an electrical output signal in response to localized fluctuations of ionic charge at or adjacent the surface of the transistor, and means for detecting the electrical output signal from the ion sensitive field effect transistor, the localized fluctuations of ionic charge indicating events occurring during a chemical reaction.
    Type: Grant
    Filed: March 11, 2002
    Date of Patent: March 30, 2010
    Assignee: DNA Electronics Limited
    Inventors: Christofer Toumazou, Sunil Purushothaman
  • Sensing apparatus and method
    Publication number: 20080032295
    Abstract: Use of a pH sensor comprising an ion-sensitive field effect transistor (ISFET) to perform real time detection/quantification of nucleic acid amplification, e.g. polymerase chain reaction (PCR) nucleic acid amplification, based on detection of protons released during the primer extension phase.
    Type: Application
    Filed: March 2, 2007
    Publication date: February 7, 2008
    Applicant: DNA Electronics Ltd.
    Inventors: Christofer Toumazou, Sunil Purushothaman
  • Sensing apparatus and method
    Publication number: 20040134798
    Abstract: A sensing apparatus comprising an ion sensitive field effect transistor arranged to generate an electrical output signal in response to localised fluctuations of ionic charge at or adjacent the surface of the transistor, and means for detecting the electrical output signal from the ion sensitive field effect transistor, the localised fluctuations of ionic charge indicating events occurring during a chemical reaction.
    Type: Application
    Filed: March 2, 2004
    Publication date: July 15, 2004
    Inventors: Christofer Toumazou, Sunil Purushothaman