Patents by Inventor Hsiang-Hsien Hsiao

Hsiang-Hsien Hsiao 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 automatically detecting total hydrocarbon content and individual volatile organic compound concentrations of waste gas
    Patent number: 6000274
    Abstract: A method for automatically detecting waste gas. The waste gas is led into a multiple switching valve through which the waste gas is sampled. Then, the waste gas sample is conveyed to an empty column and/or a chromatographic column, via the multiple switching valve. Then, the total hydrocarbon content of the waste gas sample is measured when the waste gas sample is conveyed to the empty column, and the waste gas sample is separated for measuring individual volatile organic compound concentrations of the waste gas sample when the waste as sample is conveyed to the chromatographic column.
    Type: Grant
    Filed: January 23, 1998
    Date of Patent: December 14, 1999
    Assignee: Industrial Technology Research Institute
    Inventors: Ching-Chih Lai, Hung-Chiao Cheng, Han-Wen Chu, Hsiang-Hsien Hsiao