Patents by Inventor Ernest W. Ashenfelter

Ernest W. Ashenfelter 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).

  • Window transmittance tester
    Patent number: 4188533
    Abstract: An infrared window transmittance tester utilized for measuring the transmission of windows used in military and commercial infrared imaging systems.
    Type: Grant
    Filed: January 9, 1978
    Date of Patent: February 12, 1980
    Assignee: The Boeing Company
    Inventors: Ernest W. Ashenfelter, Fred M. Dickey, Jerry R. White