Patents by Inventor Leo J. Bartolanzo, Jr.

Leo J. Bartolanzo, Jr. 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).

  • Route selection using cached partial trees in a data communications network
    Patent number: 5321815
    Abstract: A process for selecting a least weight path between two nodes in a data communication network uses partial trees created and cached in prior route selection operations. All root nodes on possible paths between the two nodes are identified. Any cached tree having a root matching one of the identified root nodes is retrieved from storage. If necessary, each retrieved tree is extended until it includes all possible destination nodes. The extended and/or retrieved trees are used to select the least weight path between the two nodes. The extended tree is then cached for possible use in future route selection operations.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: June 14, 1994
    Assignee: International Business Machines Corp.
    Inventors: Leo J. Bartolanzo, Jr., Robert D. Clouston, John E. McGinn, William E. Siddall