Patents by Inventor Winfried Hoffman

Winfried Hoffman 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).

  • Encapsulation of a photovoltaic element
    Patent number: 4869755
    Abstract: The encapsulation of a photovoltaic element is described in which the outer surface is provided with a two layer protective film comprising a carbon film and a dielectric silicon compound film.
    Type: Grant
    Filed: July 14, 1988
    Date of Patent: September 26, 1989
    Assignee: Nukem GmbH
    Inventors: Hans Huschka, Winfried Hoffman