Patents by Inventor Robert N. Marks

Robert N. Marks 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).

  • Photodetector device having a semiconductive conjugated polymer
    Patent number: 5523555
    Abstract: A photodetector device includes a semiconductive conjugated polymer, such as PPV, arranged between first and second electrode layers having different work functions, a bias circuitry connected to apply a bias voltage between the first and second electrode layers, and a sensing circuitry connected to detect a photocurrent flowing between the first and second electrode layers across the polymer layer as a result of radiation incident on the polymer layer while the bias voltage is applied. The bias voltage is selected in relation to the thickness of the polymer layer.
    Type: Grant
    Filed: September 14, 1994
    Date of Patent: June 4, 1996
    Assignee: Cambridge Display Technology
    Inventors: Richard H. Friend, Andrew B. Holmes, Donal D. C. Bradley, Robert N. Marks