Patents by Inventor Robert L. Roth

Robert L. Roth 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).

  • Radiant energy sample heating and temperature control
    Patent number: 5337619
    Abstract: A radiant energy heating source for heating the sample during purge of analytes to the sorbent trap is disclosed. The radiant energy heat source may be provided with a filter to pass only certain spectra of visible light to the sample. A thermocouple is provided to monitor the temperature of the sample and provide feedback to the radiant energy heating source.
    Type: Grant
    Filed: March 6, 1992
    Date of Patent: August 16, 1994
    Assignee: O. I. Corporation
    Inventors: Bruce J. Hodgins, Robert L. Roth