Patents by Inventor Jeffrey J. Druessel

Jeffrey J. Druessel 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).

  • Method for fabricating a gradient refractive index optical filter
    Patent number: 5928713
    Abstract: A method for fabricating a gradient index optical filter comprising a thin film having a low refractive index contrast and a specific reflectance function structured using the phase of the refractive index profile as a variable to permit closed form, constrained optimization of rugate filters.
    Type: Grant
    Filed: March 19, 1996
    Date of Patent: July 27, 1999
    Assignee: United States of America as represented by the Secretary of the Air Force
    Inventors: Peter D. Haaland, Jeffrey J. Druessel