Patents by Inventor Stuart B. Dunham

Stuart B. Dunham 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).

  • Nuclei analysis of solid substances
    Patent number: 4238194
    Abstract: The presence of red phosphorus in solid form is detected through the use of a condensation nuclei detector and the preliminary steps of reacting the phosphorus body with ozone and then removing solid particles from a sample of the resulting gas mixture and forming phosphoric acid nuclei in the filtered gas sample.
    Type: Grant
    Filed: October 4, 1966
    Date of Patent: December 9, 1980
    Assignee: General Electric Company
    Inventor: Stuart B. Dunham