Patents by Inventor Herbert O. Frederickson

Herbert O. Frederickson 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).

  • Method of making circuit assembly with hardened direct bond lead frame
    Patent number: 4788765
    Abstract: In an electric circuit assembly (2) having conductive lead frames (8-10) directly bonded to an insulating substrate (6) by a eutectic, the lead frames are further subjected to a work hardening step (32, 34) to stiffen the lead frames and enable push-on fastener connection (12) to the lead frames without collapse thereof.
    Type: Grant
    Filed: November 13, 1987
    Date of Patent: December 6, 1988
    Assignee: Gentron Corporation
    Inventors: Lance R. Kaufman, John A. Dombeck, Herbert O. Frederickson