Patents by Inventor Ling Elizabeth Xu

Ling Elizabeth Xu 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).

  • Patent number: 6430688
    Abstract: A method, apparatus, article of manufacture, and a memory structure for issuing digital certificates to a client is disclosed. The method comprises the steps of accepting a digital certificate request from a client in a web server, the digital certificate request comprising at least one client parameter, passing the client parameter to user exit external to the web server via an interface implemented by a servlet property file to determine if a digital certificate should be issued to the client, and transmitting the digital certificate to the client if the external processing module indicates that the digital certificate should be issued to the client. The article of manufacture comprises a data storage device tangibly embodying instructions to perform the method steps described above.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: August 6, 2002
    Assignee: International Business Machines Corporation
    Inventors: Ulrich W. Kohl, Ling Elizabeth Xu