Patents by Inventor Daniel J. Menegay

Daniel J. Menegay 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).

  • Electromotive brushes produced from mesophase pitch fibers
    Patent number: 4140832
    Abstract: Electromotive brushes having improved commutating properties composed of a dense, rigid plate of self-bonded, non-woven carbon fibers formed from mesophase pitch fibers.
    Type: Grant
    Filed: December 23, 1976
    Date of Patent: February 20, 1979
    Assignee: Union Carbide Corporation
    Inventor: Daniel J. Menegay