Patents by Inventor Mark K. Kullen

Mark K. Kullen 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).

  • Thermorefractive optical switch
    Patent number: 5382985
    Abstract: An optical switching device is described which comprises a substrate of light absorbent material, a plurality of holes defined through the substrate containing a liquid material having an index of refraction which is highly temperature dependent within a selected temperature range of operation, the liquid-filled holes defining a plurality of waveguides for conducting light through the substrate.
    Type: Grant
    Filed: June 14, 1991
    Date of Patent: January 17, 1995
    Assignee: The United States of America as represented by the Secretary of the Air Force
    Inventors: Roger J. Becker, Mark K. Kullen