Patents by Inventor Sigman L. Shapiro

Sigman L. Shapiro 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: 5621201
    Abstract: An automated purchasing control system which can be customized for a corporate customer. The system receives an authorization request over the phone lines from a remote point-of-sale terminal and processes the request using unique software. The software has a database customized to a corporate user to establish that company hierarchial structure. Elements of the hierarchial structure are independently reconfigurable, so that a company can specify different hierarchial relationships in the software for authorization, billing and reporting purposes. Different authorization tests can be established for each position in a hierarchy, with a particular position being required to pass not only its own test, but the test of elements higher in the hierarchial tree.
    Type: Grant
    Filed: February 5, 1996
    Date of Patent: April 15, 1997
    Assignee: Visa International
    Inventors: Stephen Langhans, Laurence M. Goodman, Sigman L. Shapiro