Patents by Inventor David Sugarmen

David Sugarmen 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).

  • Dual-homing select architecture
    Patent number: 6662308
    Abstract: A network architecture comprised of nodes and a transport network capable of recovering from failures within the network. The network architecture incorporates select functions into the nodes for managing the data flow between individual edge routers and their connection through core routers to the transport network. The select function allows an individual node to recover independently without signaling other nodes over the transport network. Utilizing the select function, the failure of a single core router can be recovered locally without recovery signaling over the transport network.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: December 9, 2003
    Assignee: Lucent Technologies Inc.
    Inventors: Stefano Baroni, Bharat Tarachand Doshi, Paramasiviah Harshavardhana, Muhammed Akber Qureshi, Antonio Rodriguez-Moral, David Sugarmen