Patents by Inventor John Barney Andress

John Barney Andress 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 and means for removing dental plaque by ultrasonic vibrations
    Patent number: 4071956
    Abstract: The oral cavity containing a fluid may be employed as a resonance chamber for ultrasonic frequencies applied to the fluid to remove dental plaque.
    Type: Grant
    Filed: March 19, 1976
    Date of Patent: February 7, 1978
    Inventor: John Barney Andress