Patents by Inventor James E. Pattison

James E. Pattison 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).

  • Transferred electron devices
    Patent number: 4417261
    Abstract: A transferred electron device includes a novel cathode giving improvement in the dc to microwave conversion efficiency over a wide temperature range. The cathode comprises a narrow n.sup.+ semiconductor zone next to the device active region or layer and, next to the n.sup.+ zone, a high field contact which includes a region of semiconductor.
    Type: Grant
    Filed: September 6, 1977
    Date of Patent: November 22, 1983
    Assignee: The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland
    Inventors: Kenneth W. Gray, James E. Pattison, Huw D. Rees