Patents by Inventor Tsai Yuan Hao

Tsai Yuan Hao 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).

  • Optical scanner
    Patent number: D478910
    Type: Grant
    Filed: July 18, 2002
    Date of Patent: August 26, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Modest Khovaylo, Liu Chin Te, Kevin Wu, Tsai Yuan Hao