Patents by Inventor Claudia Umfahrer

Claudia Umfahrer 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: 6143814
    Abstract: The invention relates to a fusible stabiliser combination for thermoplastic polymers with the features of the main claim. The invention also relates to a process for the preparation of said combination, and thermoplastic polymers produced by the use thereof.
    Type: Grant
    Filed: May 7, 1999
    Date of Patent: November 7, 2000
    Assignee: Chemson Polymer-Additive Gesellschaft mbH
    Inventors: Michael Schiller, Hartmut Hensel, Charles Videler, Emil Lattacher, Paul Ebner, Klaus Dolleschal, Karoline Pacher, Claudia Umfahrer