Patents by Inventor Martin John Willettt

Martin John Willettt 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).

  • Gas Sensor Assembly With Catalytic Element
    Publication number: 20080226505
    Abstract: A gas sensor assembly comprising a gas-sensitive element, and a first pulse modulation circuit comprising a first switching device is disclosed. The gas-sensitive element and the first switching device are arranged in series with a power supply. The first pulse modulation circuit further comprises a first control module adapted to control the first switching device in accordance with a monitored parameter of the gas-sensitive element, the parameter varying with the temperature of the element, thereby controlling the power consumed from the power supply by the gas-sensitive element.
    Type: Application
    Filed: April 18, 2006
    Publication date: September 18, 2008
    Applicant: CITY TECHNOLOGY LIMITED
    Inventors: Martin John Willettt, David Frank Davies, Ali Hosseinmardi, Laurence Joyce