Patents by Inventor Mark A. Stepanek

Mark A. Stepanek 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).

  • Crosslinkable fluoro elastomer composition
    Patent number: 5166236
    Abstract: An elastomeric composition containing a fugitive tracer compound that fluoresces on exposure to radiation, but which loses its fluorescence during postcuring treating permits monitoring of the completeness of the cure.
    Type: Grant
    Filed: December 5, 1990
    Date of Patent: November 24, 1992
    Assignee: E. I. du Pont de Nemours and Company
    Inventors: James A. Alexander, Paul D. Brothers, Philip C. Mazzola, Mark A. Stepanek