Patents by Inventor Edward G. Zubler

Edward G. Zubler 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).

  • Metal halide lamps with oxidized frame parts
    Patent number: 4918352
    Abstract: Metal halide lamps having better lumen maintenance over the life of the lamp contain metal frame parts whose surface is oxidized either prior to lamp assembly or oxidized in-situ during operation of the lamp by oxygen or an oxidizing agent present inside the outer vitreous envelope.
    Type: Grant
    Filed: November 7, 1988
    Date of Patent: April 17, 1990
    Assignee: General Electric Company
    Inventors: Carl H. Hess, Frank I. Ewing, Ralph M. Potter, Timothy D. Russell, Edward G. Zubler