Patents by Inventor Géza István Szeghy

Géza István Szeghy 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).

  • Lighting apparatus having barrier coating for reduced mercury depletion
    Patent number: 8294353
    Abstract: Embodiments of a lighting apparatus comprise a barrier coating with multiple layers. Each layer comprises metal oxide particles such as gamma alumina particles and alpha alumina particles. In one embodiment, the barrier coating comprises a first layer that reduces mercury depletion and a second layer that improves opacity.
    Type: Grant
    Filed: August 25, 2011
    Date of Patent: October 23, 2012
    Assignee: General Electric Company
    Inventors: Gábor Sajó, István Károly Deme, Ottokár Gyulasi, Gabriella Révész, Géza István Szeghy