Patents by Inventor Ronald R. Duff, Jr.

Ronald R. Duff, Jr. 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).

  • Vibrating toothbrush
    Patent number: 8332982
    Abstract: A toothbrush has a head extending from a neck which extends from a handle, and the head has a plurality of tooth cleaning elements extending therefrom. A first group of tooth cleaning elements is located towards a free end of the head, and a second group of tooth cleaning elements is located towards the outside of the head. A third group of tooth cleaning elements, which alternate with the second group of tufts, are oriented at an acute angle to a top surface of the head in a direction that is across the width of the head. A fourth group of tooth cleaning elements is located toward the inside of the head, and each is made of a thermoplastic elastomer and each is in the shape of a curved wall. A fifth group of tooth cleaning elements is located towards the inside of the head.
    Type: Grant
    Filed: August 24, 2009
    Date of Patent: December 18, 2012
    Assignee: The Gillette Company
    Inventors: Phillip M Braun, Joseph Syndosis, Ronald R Duff, Jr., Richard H. Cohen, Thomas Craig Masterman
  • Vibrating Toothbrush
    Publication number: 20100162499
    Abstract: A toothbrush has a head extending from a neck which extends from a handle, and the head has a plurality of tooth cleaning elements extending therefrom. A first group of tooth cleaning elements is located towards a free end of the head, and a second group of tooth cleaning elements is located towards the outside of the head. A third group of tooth cleaning elements, which alternate with the second group of tufts, are oriented at an acute angle to a top surface of the head in a direction that is across the width of the head. A fourth group of tooth cleaning elements is located toward the inside of the head, and each is made of a thermoplastic elastomer and each is in the shape of a curved wall. A fifth group of tooth cleaning elements is located towards the inside of the head.
    Type: Application
    Filed: August 24, 2009
    Publication date: July 1, 2010
    Inventors: Phillip M. Braun, Joseph Synodis, Ronald R. Duff, JR., Richard H. Cohen, Thomas Craig Masterman
  • Dental hygiene article
    Patent number: 6145516
    Abstract: A dental hygiene article, including a dental floss, and a microcapsule associated with a portion of the floss. The microcapsule includes a pigment encapsulated within the microcapsule for changing the color of a portion of the floss associated with the microcapsule upon rupture of the microcapsule as an indication of use or release of an active agent.
    Type: Grant
    Filed: April 23, 1999
    Date of Patent: November 14, 2000
    Assignee: Gillette Canada Inc.
    Inventors: Gordon G. Guay, Jean L. Spencer, Ronald R. Duff, Jr.
  • Notched dental hygiene article
    Patent number: 6018840
    Abstract: A dental hygiene article including a notched filament. The dental hygiene article can be a dental floss, or an oral brush (e.g., an electronic toothbrush, a manual toothbrush, or an interdental brush).
    Type: Grant
    Filed: March 9, 1998
    Date of Patent: February 1, 2000
    Assignee: Gillette Canada Inc.
    Inventors: Gordon G. Guay, Ronald R. Duff, Jr.
  • Dental hygiene article
    Patent number: 5941256
    Abstract: A dental hygiene article, including a dental floss, and a microcapsule associated with a portion of the floss. The microcapsule includes a pigment encapsulated within the microcapsule for changing the color of a portion of the floss associated with the microcapsule upon rupture of the microcapsule as an indication of use or release of an active agent.
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: August 24, 1999
    Assignee: Gillette Canada Inc.
    Inventors: Gordon G. Guay, Jean L. Spencer, Ronald R. Duff, Jr.