Patents by Inventor Chung-Tao Tu

Chung-Tao 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).

  • Toothbrush package
    Patent number: D611809
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: March 16, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Todd Christopher Borgerson, Casey Joseph Gustafson, Robbert E. Rietbroek, Peter Alan Goldman, Kevin Sams, Chung-Tao Tu, Lee Anne Hilsabeck
  • Toothbrush package
    Patent number: D616302
    Type: Grant
    Filed: October 12, 2009
    Date of Patent: May 25, 2010
    Assignee: The Procter & Gamble Company
    Inventors: Todd Christopher Borgerson, Casey Joseph Gustafson, Robbert E. Rietbroek, Peter Alan Goldman, Kevin Sams, Chung-Tao Tu, Lee Anne Hilsabeck
  • Portion of a toothbrush package
    Patent number: D634626
    Type: Grant
    Filed: June 20, 2008
    Date of Patent: March 22, 2011
    Assignee: The Procter & Gamble Company
    Inventors: Casey Joseph Gustafson, Robbert E. Rietbroek, Peter Goldman, Lee Anne Hilsabeck, Kevin Sams, Chung-Tao Tu