Patents by Inventor Stephen William Birch

Stephen William Birch 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).

  • ELECTROCHEMICAL SENSOR
    Publication number: 20240044830
    Abstract: The present invention relates to an electrochemical sensor for determining the presence or quantity of an analyte (eg free chlorine) in a sample.
    Type: Application
    Filed: September 16, 2021
    Publication date: February 8, 2024
    Inventors: Simon Richard Johnston, Stephen William Birch, Samantha Lunn, James Iacobini
  • Electrochemical sensor
    Patent number: 10895549
    Abstract: The present invention relates to an electrochemical sensor for determining the presence or quantity (eg concentration) of an oxidant of interest in an aqueous solution.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: January 19, 2021
    Assignee: Palintest Limited
    Inventors: Simon Johnston, Stephen William Birch
  • ELECTROCHEMICAL SENSOR
    Publication number: 20190033246
    Abstract: The present invention relates to an electrochemical sensor for determining the presence or quantity (eg concentration) of an oxidant of interest in an aqueous solution.
    Type: Application
    Filed: March 27, 2017
    Publication date: January 31, 2019
    Applicant: PALINTEST LIMITED
    Inventors: Simon JOHNSTON, Stephen William BIRCH
  • Electrochemical sensor
    Patent number: 8142641
    Abstract: A electrochemical sensor comprising a mounting having screen printed array of electrodes located thereon, the array comprising a reference electrode, a counter electrode and a plurality of working electrodes, wherein the working electrodes are each overlaid with an insulating layer of insulating material, the insulating layer having an array of apertures, exposing a respective array of working regions of the working electrodes, and a method of making same by applying screen printing technic, and a method of using same for chlorine determination.
    Type: Grant
    Filed: August 31, 2006
    Date of Patent: March 27, 2012
    Assignee: Palintest Limited
    Inventors: Stephen William Birch, John Sutherland
  • Electrochemical sensor
    Publication number: 20090321278
    Abstract: A electrochemical sensor comprising a mounting having screen printed array of electrodes located thereon, the array comprising a reference electrode, a counter electrode and a plurality of working electrodes, wherein the working electrodes are each overlaid with an insulating layer of insulating material, the insulating layer having an array of apertures, exposing a respective array of working regions of the working electrodes, and a method of making same by applying screen printing technic, and a method of using same for chlorine determination.
    Type: Application
    Filed: August 31, 2006
    Publication date: December 31, 2009
    Inventors: Stephen William Birch, John Southerland