Patents by Inventor Judith Ann Long

Judith Ann Long 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).

  • Semi-insulated indium phosphide based compositions
    Patent number: 6211539
    Abstract: It has been found that through the use of ferrocene or iron pentacarbonyl based compounds, it is possible to produce semi-insulating epitaxial layers of indium phosphide-based compounds by an MOCVD process. Resistivities up to 1×109 ohm-cm have been achieved as compared to resistivities on the order of 5×103 ohm-cm for other types of semi-insulating epitaxial indium phosphide.
    Type: Grant
    Filed: February 22, 1994
    Date of Patent: April 3, 2001
    Assignee: Lucent Technologies Inc.
    Inventors: Wilbur Dexter Johnston, Jr., Judith Ann Long