Patents by Inventor Kwai-Yung Benjamin Su

Kwai-Yung Benjamin Su 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).

  • Low friction toothbrush
    Patent number: 6871374
    Abstract: A brush for use in cleaning teeth, and a method for cleaning teeth using such brush, in which bristles are used in the brush that are prepared from a composition containing a thermoplastic polymeric resin in admixture with a slip agent.
    Type: Grant
    Filed: March 22, 2004
    Date of Patent: March 29, 2005
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: Russel A. Brezler, III, Susan E. Loudin, Charles F. Nelson, Kwai-Yung Benjamin Su
  • Low friction toothbrush
    Publication number: 20040175675
    Abstract: A brush for use in cleaning teeth, and a method for cleaning teeth using such brush, in which bristles are used in the brush that are prepared from a composition containing a thermoplastic polymeric resin in admixture with a slip agent.
    Type: Application
    Filed: March 22, 2004
    Publication date: September 9, 2004
    Inventors: Russel A. Brezler, Susan E. Loudin, Charles F. Nelson, Kwai-Yung Benjamin Su
  • Low friction toothbrush
    Publication number: 20020120995
    Abstract: A brush for use in cleaning teeth, and a method for cleaning teeth using such brush, in which bristles are used in the brush that are prepared from a composition containing a thermoplastic polymeric resin in admixture with a slip agent.
    Type: Application
    Filed: September 25, 2001
    Publication date: September 5, 2002
    Inventors: Russel A. Brezler, Susan E. Loudin, Charles F. Nelson, Kwai-Yung Benjamin Su