Patents by Inventor Roger Hugh Partridge

Roger Hugh Partridge 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).

  • Radiation sources
    Patent number: 3995299
    Abstract: A radiation source comprising a lamina of amorphous or predominantly amorus polymer material having appreciable electrical charge mobility and a low ionization potential; a strong electron donor; a strong electron acceptor; and preferably at least one fluorescent additive; electrical connections being provided by which an electric current may be passed through the thickness of said lamina to excite radiation therefrom.
    Type: Grant
    Filed: October 7, 1975
    Date of Patent: November 30, 1976
    Assignee: The Secretary of State for Industry in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventor: Roger Hugh Partridge