Patents by Inventor Yi Hui Yao

Yi Hui Yao 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).

  • Solar spot light
    Patent number: D542959
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: May 15, 2007
    Inventor: Yi Hui Yao
  • Lamp
    Patent number: D566322
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: April 8, 2008
    Inventor: Yi Hui Yao
  • Lead connector
    Patent number: D577672
    Type: Grant
    Filed: March 19, 2007
    Date of Patent: September 30, 2008
    Inventor: Yi Hui Yao