Patents by Inventor Christopher Langdon

Christopher Langdon 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).

  • Computerized device for pulsed potential voltammetric measurement of oxygen using a membrance covered polarographic electrode
    Patent number: 4556472
    Abstract: An oxygen analyzer which measures the level of dissolved oxygen in a liquid stream. The measuring process embodies chronoamperoemetry of pulsed potential voltammetry. The signal from the electrode is real time averaged. The analyzer does not require temperature, salinity or pressure compensation circuitry and does not have to be calibrated repeatedly.
    Type: Grant
    Filed: June 27, 1984
    Date of Patent: December 3, 1985
    Assignees: Board of Governors for Higher Education, State of RI, Providence Plantations
    Inventor: Christopher Langdon
  • Method of measuring oxygen using a membrane covered polarographic electrode
    Patent number: 4464230
    Abstract: An oxygen analyzer which measures the level of dissolved oxygen in a liquid stream. The measuring process embodies chronoamperoemetry of pulsed potential voltammetry. The signal from the electrode is real time averaged. The analyzer does not require temperature, salinity or pressure compensation circuitry and does not have to be calibrated repeatedly.
    Type: Grant
    Filed: April 19, 1982
    Date of Patent: August 7, 1984
    Assignee: University of Rhode Island
    Inventor: Christopher Langdon