Patents by Inventor Tien Chih Kao

Tien Chih Kao 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).

  • Cord lock assembly
    Patent number: D668137
    Type: Grant
    Filed: December 30, 2010
    Date of Patent: October 2, 2012
    Assignee: Duraflex Hong Kong Limited
    Inventor: Tien Chih Kao
  • Buckle
    Patent number: D668178
    Type: Grant
    Filed: December 20, 2011
    Date of Patent: October 2, 2012
    Assignee: Duraflex Hong Kong Limited
    Inventor: Tien-Chih Kao
  • Female buckle portion
    Patent number: D688157
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 20, 2013
    Assignee: Duraflex Hong Kong Limited
    Inventor: Tien-Chih Kao
  • Buckle
    Patent number: D688158
    Type: Grant
    Filed: June 21, 2012
    Date of Patent: August 20, 2013
    Assignee: Duraflex Hong Kong Limited
    Inventor: Tien-Chih Kao
  • Buckle
    Patent number: D693734
    Type: Grant
    Filed: July 10, 2013
    Date of Patent: November 19, 2013
    Assignee: Duraflex Hong Kong Limited
    Inventor: Tien-Chih Kao