Patents by Inventor Joseph J. Krebs

Joseph J. Krebs 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).

  • Circuit and method for interfacing vehicle controller and diagnostic test instrument
    Patent number: 5555498
    Abstract: An adapter which permits the use of present diagnostic tools with newer ISO9141 equipped engine and transmission controllers. The adapter facilitates bi-directional communication while conditioning the signals entering and exiting the adapter and allow the diagnostic tools to operate transparent of the adapter's presence.
    Type: Grant
    Filed: March 18, 1994
    Date of Patent: September 10, 1996
    Assignee: Chrysler Corporation
    Inventors: Charles J. Berra, John R. Boldt, Alan J. Amici, Joseph J. Krebs