Patents by Inventor Martin P. Aznavoorian

Martin P. Aznavoorian 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).

  • Tooth brush
    Patent number: 4894880
    Abstract: A tooth brush having a plurality of rows of bristles of varying stiffness and cut. Outer bristles are directed to the gum line, while inner bristles work directly on the tooth surface. The inner bristles are stiffer than the outer bristles to assure proper scrubbing of the tooth surface.
    Type: Grant
    Filed: February 3, 1989
    Date of Patent: January 23, 1990
    Inventor: Martin P. Aznavoorian