Patents by Inventor Kedar N. Rustogi

Kedar N. Rustogi 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).

  • Toothbrush
    Patent number: 4033008
    Abstract: A toothbrush head has two inner longitudinal rows of relatively soft bristle tufts, two outer longitudinal rows of shorter relatively hard bristle tufts, and a transverse end row of hard bristle tufts that are longer than any of the other tufts, and the end surfaces of the bristle tufts of the inner and outer rows are tapered laterally outwardly from an apex of the softer bristles that extends longitudinally medially of the head.
    Type: Grant
    Filed: April 5, 1976
    Date of Patent: July 5, 1977
    Assignee: Colgate-Palmolive Company
    Inventors: William C. Warren, Anthony R. Volpe, Kedar N. Rustogi