Patents by Inventor Ludger Schaefers

Ludger Schaefers 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).

  • System for transmission of data flow in data communication networks
    Patent number: 5961607
    Abstract: In a system for the transmission of data flow in data communication networks, a special provision is a network integration unit (28), which integrates at least two varying physical networks (24, 25) and allows these networks (24, 25) to appear at the network level as one physical network. With the system in accordance with the invention, the change between different data networks (24, 25) is completely seamless for users in a stationary network or other mobile network subscribers.
    Type: Grant
    Filed: June 11, 1996
    Date of Patent: October 5, 1999
    Assignee: International Business Machines Corporation
    Inventor: Ludger Schaefers