Patents by Inventor John Fatovic

John Fatovic 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).

  • Masking noise generator
    Patent number: 4054751
    Abstract: There is disclosed a masking noise generator which includes a digital means such as a shift register for generating noise signals wherein the output of the shift register is fed via a filtering means to a transducer means such as a speaker for converting the noise signals to acoustic waves.
    Type: Grant
    Filed: March 1, 1976
    Date of Patent: October 18, 1977
    Assignee: CDF Industries, Inc.
    Inventors: George Donald Calder, John Duda, John Fatovic