Patents by Inventor Ji Yan Mei

Ji Yan Mei 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).

  • Oral care implement
    Patent number: D661490
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: June 12, 2012
    Assignee: Colgate-Palmolive Company
    Inventors: Xi Wen Jin, Kai Zhang, Ji Yan Mei
  • Handle portion of an oral care implement
    Patent number: D672561
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: December 18, 2012
    Assignee: Colgate-Palmolive Company
    Inventors: Xi Wen Jin, Kai Zhang, Ji Yan Mei
  • Oral care implement
    Patent number: D676245
    Type: Grant
    Filed: March 30, 2010
    Date of Patent: February 19, 2013
    Assignee: Colgate-Palmolive Company
    Inventors: Xi Wen Jin, Liu Yu, Ding Xiang Ji, Ji Yan Mei
  • Head portion of an oral care implement
    Patent number: D677900
    Type: Grant
    Filed: March 31, 2010
    Date of Patent: March 19, 2013
    Assignee: Colgate-Palmolive Company
    Inventors: Xi Wen Jin, Kai Zhang, Ji Yan Mei
  • Oral care implement
    Patent number: D679504
    Type: Grant
    Filed: June 30, 2010
    Date of Patent: April 9, 2013
    Assignee: Colgate-Palmolive Company
    Inventors: David Lee, Liu Yu, Ding Xiang Ji, Ji Yan Mei, Zhang Ran, Xi Wen Jin
  • Oral care implement
    Patent number: D805307
    Type: Grant
    Filed: September 22, 2016
    Date of Patent: December 19, 2017
    Assignee: COLGATE-PALMOLIVE COMPANY
    Inventors: Wen Jin Xi, Yu Liu, Xiang Ji Ding, Ji Yan Mei