Patents by Inventor Alex Yu-Feng Liu

Alex Yu-Feng 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).

  • Handled tool belt
    Patent number: D545565
    Type: Grant
    Filed: September 25, 2006
    Date of Patent: July 3, 2007
    Assignee: Contractor Pro, LLC
    Inventors: Kirk B. Newman, Alex Yu-Feng Liu