Patents Assigned to Biosonics International, Ltd.
  • Ultrasonic tooth cleaner
    Patent number: 4176454
    Abstract: An ultrasonic method and apparatus for removing dental plaque from teeth in situ and for cleaning the teeth employing a liquid couple for imparting ultrasonic energy to the surface of the teeth at ultrasonic energy levels which are not harmful to the teeth or gums.
    Type: Grant
    Filed: April 25, 1977
    Date of Patent: December 4, 1979
    Assignee: Biosonics International, Ltd.
    Inventors: Edward E. Hatter, Richard H. Taylor, Richard D. McGunigle