Patents by Inventor Robert Krawiec

Robert Krawiec 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).

  • Fast curing furan foundry binder system containing a metal salt accelerator
    Patent number: 4543373
    Abstract: Quick curing "no bake" foundry core and mold compositions containing metal salt accelerators to provide shaped sand shapes which can be removed from a mold in a period of not more than about 40 seconds.
    Type: Grant
    Filed: November 8, 1984
    Date of Patent: September 24, 1985
    Assignee: QO Chemicals, Inc.
    Inventors: Robert Krawiec, James E. Menting