Patents by Inventor Larry C. Thomas

Larry C. Thomas 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 chromatograph detector
    Patent number: 4541269
    Abstract: A gas chromatographic detector for detection of compounds which fluoresce as a photo-response to light. The detector utilizes a remotely located light source for fluorescent excitation of a compound in a gas phase, and includes apparatus for the measurement of emitted fluorescence of a gas and for the measurement of transmitted light through a gas. The detector is close-coupled to an output end of a heated chromatographic column and eliminates the requirement of heated transfer tubes between the column and the detector.
    Type: Grant
    Filed: July 27, 1983
    Date of Patent: September 17, 1985
    Assignee: The State of Oregon acting by and through State Board of Higher Education for and on behalf of Oregon State University
    Inventor: Larry C. Thomas