Patents by Inventor John Edward Elper

John Edward Elper 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 DEVICE WITH IMPROVED EXTRACTION EFFICIENCY
    Publication number: 20140048817
    Abstract: In embodiments of the invention, a semiconductor structure comprising a III-nitride light emitting layer disposed between an n-type region and a p-type region is grown on a substrate. The substrate is a non-III-nitride material. The substrate has an in-plane lattice constant asubstrate. At least one III-nitride layer in the semiconductor structure has a bulk lattice constant alayer and [(|asubstrate?alayer|)/asubstrate]100% is no more than 1%. A surface of the substrate opposite the surface on which the semiconductor structure is grown is textured.
    Type: Application
    Filed: November 1, 2011
    Publication date: February 20, 2014
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Nathan Frederick Gardner, Werner Karl Goetz, Michail Jason Grundmann, Melvin Barker Mclaurin, John Edward Elper, Michael David Camras, Aurelien Jean Francois Davie