Patents by Inventor Barbara Franklin

Barbara Franklin 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 of testing human auditory responses
    Patent number: 4139730
    Abstract: An audiometric testing technique uses filtered speech bands which are attenuated and presented to a subject at different intensity levels. By producing a plurality of frequency bands of the speech pattern at different frequencies and presenting each of the frequency bands at a different intensity level, an audiogram is obtained.
    Type: Grant
    Filed: August 10, 1977
    Date of Patent: February 13, 1979
    Inventor: Barbara Franklin