Patents by Inventor William L. Kopecky

William L. Kopecky 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).

  • Lubricated flow fiber extrusion
    Patent number: 7476352
    Abstract: Methods and systems for extruding polymeric fibers are disclosed. The extrusion process preferably involves the delivery of a lubricant separately from a polymer melt stream to each orifice of an extrusion die such that the lubricant preferably encases the polymer melt stream as it passes through the die orifice.
    Type: Grant
    Filed: May 21, 2004
    Date of Patent: January 13, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: Bruce B. Wilson, Roger J. Stumo, Stanley C. Erickson, William L. Kopecky, James C. Breister