Patents by Inventor Barnabas C. Chen

Barnabas C. Chen 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).

  • Patent number: 7774888
    Abstract: A music-playing toothbrush having a hollow handle housing containing suitable solid state electronic components for selectively playing a musical tune with improved sound quality. The sound quality is expressly addressed in the handle design with an interior sealed speaker enclosure configured to direct the sound toward the listener with little internal leakage and with an undulating violin-like cavity shape that suppresses internal standing waves. Moreover, the handle provides a relatively large, relatively flat, substantially uninterrupted surface for receiving attractive and motivational graphics such as licensed cartoon characters, which may be compatible with the musical selection.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: August 17, 2010
    Inventor: Barnabas C. Chen
  • Publication number: 20080256730
    Abstract: A music-playing toothbrush having a hollow handle housing containing suitable solid state electronic components for selectively playing a musical tune with improved sound quality. The sound quality is expressly addressed in the handle design with an interior sealed speaker enclosure configured to direct the sound toward the listener with little internal leakage and with an undulating violin-like cavity shape that suppresses internal standing waves. Moreover, the handle provides a relatively large, relatively flat, substantially uninterrupted surface for receiving attractive and motivational graphics such as licensed cartoon characters, which may be compatible with the musical selection.
    Type: Application
    Filed: April 19, 2007
    Publication date: October 23, 2008
    Inventor: Barnabas C. Chen
  • Patent number: D505264
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: May 24, 2005
    Assignee: World Trend, Inc.
    Inventor: Barnabas C. Chen
  • Patent number: D453077
    Type: Grant
    Filed: August 30, 2000
    Date of Patent: January 29, 2002
    Inventor: Barnabas C. Chen
  • Patent number: D461961
    Type: Grant
    Filed: August 15, 2000
    Date of Patent: August 27, 2002
    Inventor: Barnabas C. Chen
  • Patent number: D474808
    Type: Grant
    Filed: July 8, 2002
    Date of Patent: May 20, 2003
    Assignee: World Trend, Inc.
    Inventor: Barnabas C. Chen
  • Patent number: D555359
    Type: Grant
    Filed: December 19, 2006
    Date of Patent: November 20, 2007
    Assignee: World Trend, Inc.
    Inventor: Barnabas C. Chen
  • Patent number: D357936
    Type: Grant
    Filed: March 11, 1994
    Date of Patent: May 2, 1995
    Assignee: World Trend, Inc.
    Inventor: Barnabas C. Chen
  • Patent number: D361345
    Type: Grant
    Filed: March 11, 1994
    Date of Patent: August 15, 1995
    Inventor: Barnabas C. Chen