Patents by Inventor Kathleen M. Doverspike

Kathleen M. Doverspike 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).

  • Light emitting diode with metal coupling structure
    Patent number: 7531840
    Abstract: An electronic device includes a conductive n-type substrate, a Group III nitride active region, an n-type Group III-nitride layer in vertical relationship to the substrate and the active layer, at least one p-type layer, and means for providing a non-rectifying conductive path between the p-type layer and the n-type layer or the substrate. The non-rectifying conduction means may include a degenerate junction structure or a patterned metal layer.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: May 12, 2009
    Assignee: Cree, Inc.
    Inventors: John A. Edmond, Kathleen M. Doverspike, Michael J. Bergmann, Hua-Shuang Kong
  • Light emitting diode with degenerate coupling structure
    Patent number: 7482183
    Abstract: An electronic device includes a conductive n-type substrate, a Group III nitride active region, an n-type Group III-nitride layer in vertical relationship to the substrate and the active layer, at least one p-type layer, and means for providing a non-rectifying conductive path between the p-type layer and the n-type layer or the substrate. The non-rectifying conduction means may include a degenerate junction structure or a patterned metal layer.
    Type: Grant
    Filed: January 22, 2007
    Date of Patent: January 27, 2009
    Assignee: Cree, Inc.
    Inventors: John A. Edmond, Kathleen M. Doverspike, Michael J. Bergmann, Hua-Shuang Kong