Patents by Inventor Yu-Tang Hsu

Yu-Tang Hsu 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).

  • Tool
    Patent number: D400775
    Type: Grant
    Filed: July 15, 1997
    Date of Patent: November 10, 1998
    Inventor: Yu-Tang Hsu
  • Handle for a tool
    Patent number: D416185
    Type: Grant
    Filed: December 1, 1998
    Date of Patent: November 9, 1999
    Inventor: Yu-Tang Hsu