Patents by Inventor Ling Xiang Liu

Ling Xiang 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).

  • Patent number: D403593
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: January 5, 1999
    Assignee: Coffer International Group Corporation
    Inventor: Ling Xiang Liu
  • Patent number: D403594
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: January 5, 1999
    Assignee: Coffer International Group Corporation
    Inventor: Ling Xiang Liu
  • Patent number: D403595
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: January 5, 1999
    Assignee: Coffer International Group Corporation
    Inventor: Ling Xiang Liu
  • Patent number: D408300
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: April 20, 1999
    Assignee: Coffer International Group Corporation
    Inventor: Ling Xiang Liu