Patents by Inventor John J. Dombrowski

John J. Dombrowski 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).

  • Remote data network access in a communication network utilizing overhead channels
    Patent number: 6632032
    Abstract: A method and system provide alternative communication paths utilizing overhead channels available on the communication network to permit isolated offices to have access to a data network and hence a remotely located monitor/controller via an office that has direct access to such a data network. In addition, the system permits an arrangement of subnetworks which allows a first subnetwork to act as a back-up or redundant path for obtaining alarm and status information regarding a second subnetwork via overhead channels available on the communication path in the first subnetwork.
    Type: Grant
    Filed: April 7, 1998
    Date of Patent: October 14, 2003
    Assignee: AT&T Corp.
    Inventors: John J. Dombrowski, Tai-Bai Kong, Wayne D. Lindholm