Patents by Inventor Han Guo Ping

Han Guo Ping 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
    Patent number: D452079
    Type: Grant
    Filed: January 23, 2001
    Date of Patent: December 18, 2001
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D453997
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: March 5, 2002
    Assignee: Colgate Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D453998
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: March 5, 2002
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D454697
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: March 26, 2002
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D457324
    Type: Grant
    Filed: March 12, 2001
    Date of Patent: May 21, 2002
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D457727
    Type: Grant
    Filed: February 15, 2001
    Date of Patent: May 28, 2002
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D462527
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: September 10, 2002
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D462839
    Type: Grant
    Filed: June 19, 2001
    Date of Patent: September 17, 2002
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D466302
    Type: Grant
    Filed: September 14, 2001
    Date of Patent: December 3, 2002
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D467430
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: December 24, 2002
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D469612
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: February 4, 2003
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D469960
    Type: Grant
    Filed: January 2, 2002
    Date of Patent: February 11, 2003
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D469961
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: February 11, 2003
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D474028
    Type: Grant
    Filed: September 13, 2001
    Date of Patent: May 6, 2003
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D474030
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: May 6, 2003
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D478211
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: August 12, 2003
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D478213
    Type: Grant
    Filed: August 2, 2002
    Date of Patent: August 12, 2003
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush containing a combination of elastomeric and filament tufts
    Patent number: D478425
    Type: Grant
    Filed: June 12, 2002
    Date of Patent: August 19, 2003
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D480213
    Type: Grant
    Filed: March 18, 2002
    Date of Patent: October 7, 2003
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping
  • Toothbrush
    Patent number: D484313
    Type: Grant
    Filed: February 15, 2002
    Date of Patent: December 30, 2003
    Assignee: Colgate-Palmolive Company
    Inventor: Han Guo Ping