Patents by Inventor Donald K. Deardorff

Donald K. Deardorff 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).

  • Spectrally selective solar absorbers
    Patent number: 4098956
    Abstract: Thin film absorber stacks consisting of an absorptive film of titanium, zirconium or hafnium suboxide, subcarbide or subnitride superposed on a reflective film of silver, aluminum or copper display spectrally selective characteristics. The absorptive film may be prepared by reactively sputtering the metal or the metal carbide in argon or other inert gas with small amounts of gas containing carbon, oxygen or nitrogen or their combinations, or by reaction of the metal film in air or other gas.
    Type: Grant
    Filed: August 11, 1976
    Date of Patent: July 4, 1978
    Assignee: The United States of America as represented by the Secretary of the Interior
    Inventors: Robert Blickensderfer, Donald K. Deardorff, Russell L. Lincoln