Patents by Inventor Helmut Werner Heuer

Helmut Werner Heuer 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).

  • Electrochromic assembly based on poly(3,4-ethylenedioxythiophene) derivatives and a UV-stabilized gel electrolyte
    Patent number: 6157479
    Abstract: UV-stabilized electrochromic assemblies having a layer structure, characterized in that one layer contains an electrically conductive, electrochromic polydioxythiophene and a further layer contains an inorganic ion-storage compound based on metal oxides or a mixture of such ion-storage compounds, where the gel electrolyte is chemically crosslinked and contains chemically bound UV absorbers which cannot migrate as UV protection.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: December 5, 2000
    Assignee: Bayer Aktiengesellschaft
    Inventors: Helmut-Werner Heuer, Rolf Wehrmann