Patents by Inventor David E. Tevault

David E. Tevault 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).

  • Organic vapor assay by Raman spectroscopy
    Patent number: 4886358
    Abstract: A method of and apparatus for analyzing for low concentrations of organic material in the atmosphere without the removal of water wherein an air sample is collected and cooled to form a condensate consisting essentially of water and organic material. The condensate is analyzed by Raman spectroscopy to detect and quantify the organic material.
    Type: Grant
    Filed: May 31, 1988
    Date of Patent: December 12, 1989
    Assignee: The United States of America as represented by the Secretary of the Navy
    Inventors: Robert E. Pellenbarg, David E. Tevault