Patents by Inventor James Richard Shealy

James Richard Shealy 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).

  • Field effect semiconductor device having dipole barrier
    Patent number: 6150680
    Abstract: A field effect semiconductor device including a substrate, a dipole barrier formed on the substrate, a channel layer formed on the dipole barrier, and source, gate and drain electrodes formed on the channel layer. The dipole barrier provides a potential barrier and a maximum electric field sufficient to confine electrons to the channel layer.
    Type: Grant
    Filed: March 5, 1998
    Date of Patent: November 21, 2000
    Assignee: Welch Allyn, Inc.
    Inventors: Lester Fuess Eastman, James Richard Shealy