Patents by Inventor Angela W. Liu

Angela W. Liu 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).

  • Backpack
    Patent number: D396952
    Type: Grant
    Filed: December 19, 1997
    Date of Patent: August 18, 1998
    Inventor: Angela W. Liu
  • Cylindrical carrying bag
    Patent number: D403155
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: December 29, 1998
    Inventor: Angela W. Liu
  • Rectangular carrying bag
    Patent number: D403156
    Type: Grant
    Filed: January 30, 1998
    Date of Patent: December 29, 1998
    Inventor: Angela W. Liu
  • Carrying bag
    Patent number: D403157
    Type: Grant
    Filed: January 5, 1998
    Date of Patent: December 29, 1998
    Inventor: Angela W. Liu
  • Casual bag
    Patent number: D406458
    Type: Grant
    Filed: January 8, 1998
    Date of Patent: March 9, 1999
    Inventor: Angela W. Liu