Patents by Inventor Warren Steve Andraschko

Warren Steve Andraschko 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).

  • Extruding thin multiphase polymer films
    Patent number: 5779962
    Abstract: Methods of extruding thin multiphase polymer films using a flat film extrusion die closely spaced to a nip to transport and cool the melt from the die to produce thin multiphase polymer films having substantially uniform calipers of about 250 micrometers or less.
    Type: Grant
    Filed: April 1, 1996
    Date of Patent: July 14, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Warren Steve Andraschko, Bruce B. Wilson