Patents by Inventor Wen-Chih Tu

Wen-Chih Tu 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).

  • Bath device for babies
    Patent number: D598995
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: August 25, 2009
    Assignee: Bei Yu Industrial Co.
    Inventor: Wen-Chih Tu
  • Bottle holder
    Patent number: D603657
    Type: Grant
    Filed: March 3, 2009
    Date of Patent: November 10, 2009
    Assignee: Bei Yu Industrial Co.
    Inventor: Wen-Chih Tu
  • Step stool
    Patent number: D606768
    Type: Grant
    Filed: August 7, 2009
    Date of Patent: December 29, 2009
    Assignee: Bei Yu Industrial Co.
    Inventor: Wen-Chih Tu
  • Bathtub for babies
    Patent number: D619225
    Type: Grant
    Filed: June 17, 2009
    Date of Patent: July 6, 2010
    Assignee: Bei Yu Industrial Co.
    Inventor: Wen-Chih Tu
  • Toilet seat for babies
    Patent number: D621489
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: August 10, 2010
    Assignee: Bei Yu Industrial Co.
    Inventor: Wen-Chih Tu