Patents by Inventor Alfred Chan Chung Tseung

Alfred Chan Chung Tseung 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).

  • Carbon monoxide detector
    Patent number: 6930586
    Abstract: A carbon monoxide (CO) detection unit incorporates a sensor which is a film or layer of NixCo1-xOy where x is from 0.1 to 0.9, e.g., spinel. The CO is detected by measuring the change in the electrical properties of the sensor. The detector can measure CO concentrations below 100 ppm and is capable of operating at room temperature and can be applied to domestic, industrial, medical and vehicular use.
    Type: Grant
    Filed: September 10, 2003
    Date of Patent: August 16, 2005
    Assignee: Catalytic Electrodes Limited
    Inventors: Alfred Chan Chung Tseung, Darren Paul Lapham, Xuekang Shan, Ian Colbeck
  • Carbon monoxide detector
    Patent number: 6885279
    Abstract: A carbon monoxide (CO) detection unit incorporates a sensor which is a film or layer of NixCo1-xOy where x is from 0.1 to 0.9, e.g., spinel. The CO is detected by measuring the change in the electrical properties of the sensor. The detector can measure CO concentrations below 100 ppm and is capable of operating at room temperature and can be applied to domestic, industrial, medical and vehicular use.
    Type: Grant
    Filed: July 29, 2002
    Date of Patent: April 26, 2005
    Assignee: Catalytic Electrodes Limited
    Inventors: Alfred Chan Chung Tseung, Darren Paul Lapham, Xuekang Shan, Ian Colbeck
  • Electrophoretic deposition
    Publication number: 20040112746
    Abstract: In electrophoretic deposition of a ceramic, the anode is or incorporates a metal which is the same as the metal in the metal salt dissolved in the solvent. Preferably the salt is magnesium nitrate.
    Type: Application
    Filed: December 1, 2003
    Publication date: June 17, 2004
    Inventors: Alfred Chan Chung Tseung, Anthony Lewis Lipman, Darren Paul Lapham, Dominic Andrew Davies, Jack Silver
  • Carbon monoxide detector
    Publication number: 20040056754
    Abstract: A carbon monoxide (CO) detection unit incorporates a sensor which is a film or layer of NixCo1−xOy where x is from 0.1 to 0.9, e.g., spinel. The CO is detected by measuring the change in the electrical properties of the sensor. The detector can measure CO concentrations below 100 ppm and is capable of operating at room temperature and can be applied to domestic, industrial, medical and vehicular use.
    Type: Application
    Filed: September 10, 2003
    Publication date: March 25, 2004
    Applicant: Catalytic Electrodes Limited
    Inventors: Alfred Chan Chung Tseung, Darren Paul Lapham, Xuekang Shan, Ian Colbeck
  • Carbon monoxide detector
    Publication number: 20030098772
    Abstract: A carbon monoxide (CO) detection unit incorporates a sensor which is a film or layer of NixCo1-xOy where x is from 0.1 to 0.9, e.g., spinel. The CO is detected by measuring the change in the electrical properties of the sensor. The detector can measure CO concentrations below 100 ppm and is capable of operating at room temperature and can be applied to domestic, industrial, medical and vehicular use.
    Type: Application
    Filed: July 29, 2002
    Publication date: May 29, 2003
    Inventors: Alfred Chan Chung Tseung, Darren Paul Lapham, Xuekang Shan, Ian Colbeck