Patents by Inventor Ronald Duff

Ronald Duff 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 head
    Publication number: 20080060155
    Abstract: A toothbrush has a handle and a head part, on which bristle filaments and at least one flexible cleaning element are arranged. The at least one flexible cleaning element is arranged on a carrier element which consists of a hard material and is connected to the head part. A process for producing such a toothbrush is also disclosed.
    Type: Application
    Filed: May 2, 2007
    Publication date: March 13, 2008
    Inventors: Phillip Braun, William Brown, Thomas Christman, Karen Claire-Zimmet, Joanna Deng, Ronald Duff, Edward Mangan
  • Toothbrush
    Publication number: 20060272112
    Abstract: A toothbrush includes a head and a tooth cleaning element extending from a top surface of the head. The head is divided into at least two portions which can be moved independent of each other. The tooth cleaning element is rotatable relative to that portion of the head from which it extends. A vibrator vibrates the head and tooth cleaning element.
    Type: Application
    Filed: April 23, 2004
    Publication date: December 7, 2006
    Inventors: Phillip Braun, Ronald Duff
  • Toothbrush
    Publication number: 20050235439
    Abstract: A toothbrush includes a head and a tooth cleaning element extending from a top surface of the head. The head is divided into at least two portions which can be moved independent of each other. The tooth cleaning element is rotatable relative to that portion of the head from which it extends. A vibrator vibrates the head and tooth cleaning element.
    Type: Application
    Filed: April 23, 2004
    Publication date: October 27, 2005
    Inventors: Phillip Braun, Joseph Synodis, Ronald Duff, Richard Cohen, Thomas Masterman