Patents by Inventor Stefan Schutel

Stefan Schutel 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).

  • Patent number: 6638585
    Abstract: The present invention is drawn to compositions and coated substrates wherein a hydrophobic backside coating layer can be implemented for use that mitigates ink transfer, surface damage, smudging, and sticking between stacked sheets in output trays of ink-jet ink printers. The backside coating can comprise hydrophobic beads suspended in a polymeric blend having a hydrophilic polymeric binder component and a hydrophobic polymeric binder component. Alternatively, the coating can comprise a hydrophobic binder blended with a natural wax. Either coating can be applied directly to the backside of a media substrate or on top of an existing hydrophilic layer that is typically applied for curl and sheet feed performance.
    Type: Grant
    Filed: January 25, 2002
    Date of Patent: October 28, 2003
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Bor-Jiunn Niu, Stefan Schutel, Meinrad Schaer