Patents by Inventor Stephen M. Igel

Stephen M. Igel 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).

  • Apparatus and method for testing multifunction communications networks
    Patent number: 5450416
    Abstract: An improved apparatus and method for isolating faults in a complex communications network such as a collision-detection network. A wrap plug connected to a communications adapter of a computer system simulates multiple functions of the network environment, rather than a single, hardwired function. A method performs a comprehensive yet convenient diagnostic test of multiple functions of the adapter while a terminal is disconnected from the network.
    Type: Grant
    Filed: August 25, 1992
    Date of Patent: September 12, 1995
    Assignee: International Business Machines Corporation
    Inventors: Roy A. Bowcutt, Stephen M. Igel, Walter P. Krapohl, Pankaj S. Lunia