Patents by Inventor Günter Grauer

Günter Grauer 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).

  • Filter material having adjustable wettability and method for its manufacture
    Patent number: 6510949
    Abstract: The invention concerns a filter material characterized in that it is impregnated with an amphiphilic substance or with a hydrophilic and a hydrophobic substance to control the water wettability and water absorption.
    Type: Grant
    Filed: October 13, 1998
    Date of Patent: January 28, 2003
    Assignee: PAPCEL - Papier und Cellulose, Technologie, Und Handels-GmbH
    Inventors: Günter Grauer, Yves Le Brech