Patents by Inventor Shawn T. Leaf

Shawn T. Leaf 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).

  • Transaction service independent HTTP server-to-transaction gateway
    Patent number: 5754772
    Abstract: A system which makes prior art On-Line Transaction Processing (OLTP) systems and their associated databases accessible using HyperText Transport Protocol (HTTP) interfaces. The response time for an on-line user seeking HTTP access to the transaction processing system is minimized by pre-establishing a transaction gateway client having a static connection to the transaction processing system. In addition, the HTTP access to the transaction processing system is available for multiple concurrant users. The system further provides a gateway that is independent of the underlying service provided by the transaction processor, whereby the same gateway client is capable of usage with different databases and operations thereon.
    Type: Grant
    Filed: March 26, 1996
    Date of Patent: May 19, 1998
    Assignee: Unisys Corporation
    Inventor: Shawn T. Leaf