Patents by Inventor John Michael Wilk

John Michael Wilk 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).

  • Loop fault location and isolation
    Patent number: 4006456
    Abstract: A simplified loop communication fault location and isolation circuit which utilizes sequences of power interruption pulses in DC power distributed on the signal lines from a master repeater to control loop signal wrap functions.
    Type: Grant
    Filed: January 2, 1976
    Date of Patent: February 1, 1977
    Assignee: International Business Machines Corporation
    Inventor: John Michael Wilk