Patents by Inventor Yi-Ho Liao

Yi-Ho Liao 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).

  • Ratchet wrench
    Patent number: D551925
    Type: Grant
    Filed: March 27, 2006
    Date of Patent: October 2, 2007
    Inventor: Yi-Ho Liao
  • Ratchet wrench
    Patent number: D558544
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: January 1, 2008
    Inventor: Yi-Ho Liao
  • Ratchet wrench
    Patent number: D562652
    Type: Grant
    Filed: March 7, 2006
    Date of Patent: February 26, 2008
    Inventor: Yi-Ho Liao