Patents by Inventor Charles T. Simonetti

Charles T. Simonetti 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).

  • Hybrid database structure linking navigational fields having a hierarchial database structure to informational fields having a relational database structure
    Patent number: 5295261
    Abstract: Improved database structure is described in which the fields of each database record are divided into two classes, navigational and informational data. The data in the navigational fields is stored in a topological map which may be viewed as a tree structure or the merger of two or more such tree structures. The informational data is preferably stored in a conventional relational database. Each leaf node in the topological map specifies a unique record in the relational database.
    Type: Grant
    Filed: July 27, 1990
    Date of Patent: March 15, 1994
    Assignee: Pacific Bell Corporation
    Inventor: Charles T. Simonetti