Patents by Inventor Grant S Richardson

Grant S Richardson 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).

  • Flame photometer detector
    Patent number: 6519030
    Abstract: A flame photometer detector is described which uses flame emission spectroscopy as the detection method, computer control and data acquisition, pulsed sampling and a rotating reference filter wheel to eliminate the effects of background chemical species. The detector is particularly suited to the testing of respirator equipment.
    Type: Grant
    Filed: September 27, 2000
    Date of Patent: February 11, 2003
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: Paul R Norman, George A Robins, Arthur M Johnston, Grant S Richardson