Patents by Inventor Ann Lai

Ann Lai 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).

  • Method for detecting or monitoring sulfur dioxide with an electrochemical sensor
    Patent number: 6623620
    Abstract: A thick film electrochemical micro-sensor device for detecting or monitoring sulfur dioxide, comprising a substrate to which is applied a working electrode, a counter electrode, a reference electrode, and optionally a heater and a temperature detector, wherein a portion of the electrodes is covered with an insulator, and a portion of the electrodes is covered with an electrolyte. The device is especially useful for detecting or monitoring sulfur dioxide in emission gases. A method of detecting or monitoring sulfur dioxide emissions using the electrochemical micro-sensor device includes contacting the emission gas with the sensor of the present invention, measuring the current output of the sensor, determining if the current output indicates the presence of sulfur dioxide, and generating a signal, that can be used to actuate a scrubber system when a pre-determined level of sulfur dioxide is detected.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: September 23, 2003
    Assignee: Hathaway Brown School
    Inventors: Ann Lai, Laurie A. Dudik, Chung-Chiun Liu
  • METHOD FOR DETECTING OR MONITORING SULFUR DIOXIDE WITH AN ELECTROCHEMICAL SENSOR
    Publication number: 20030155241
    Abstract: A thick film electrochemical micro-sensor device for detecting or monitoring sulfur dioxide, comprising a substrate to which is applied a working electrode, a counter electrode, a reference electrode, and optionally a heater and a temperature detector, wherein a portion of the electrodes is covered with an insulator, and a portion of the electrodes is covered with an electrolyte. The device is especially useful for detecting or monitoring sulfur dioxide in emission gases. A method of detecting or monitoring sulfur dioxide emissions using the electrochemical micro-sensor device includes contacting the emission gas with the sensor of the present invention, measuring the current output of the sensor, determining if the current output indicates the presence of sulfur dioxide, and generating a signal, that can be used to actuate a scrubber system when a pre-determined level of sulfur dioxide is detected.
    Type: Application
    Filed: December 17, 1999
    Publication date: August 21, 2003
    Applicant: Hathaway Brown School
    Inventors: ANN LAI, LAURIE A. DUDIK, CHUNG-CHIUN LIU
  • Oven glove
    Patent number: D752818
    Type: Grant
    Filed: December 18, 2014
    Date of Patent: March 29, 2016
    Inventor: Ann Lai