Patents by Inventor Liu Quiang

Liu Quiang 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).

  • Authentication method and apparatus
    Patent number: 8495718
    Abstract: An identity authentication method is provided.
    Type: Grant
    Filed: September 28, 2010
    Date of Patent: July 23, 2013
    Assignee: International Business Machines Corporation
    Inventors: Zhu Han, Liu Quiang, Huan Hao Zou