Patents by Inventor Erwin Kreit

Erwin Kreit 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).

  • Patent number: 4866807
    Abstract: The tooth brush comprises a figurehead detachably fixed to a handle. The head contains a module with at least one pushbutton, a loudspeaker, a digital sound generator and a battery (19). When the button is pressed, a tune is generated by the sound generator for a particular period of time and played back through the loudspeaker. This design makes the toothbrush less expensive to produce and makes it easier for children to become accustomed to regular and thorough cleaning of their teeth.
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: September 19, 1989
    Inventors: Erwin Kreit, Hans Ineichen