Patents by Inventor Juergen Sieckmann

Juergen Sieckmann 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).

  • Process and device for producing transparent plastic films, sheets or strips of at least two layers, by casting
    Patent number: 4563395
    Abstract: The invention relates to the production of transparent plastic films, sheets or strips of excellent optical quality. It proposes a process for producing these products by casting of a composition suitable for casting on a horizontal, plane casting support, in continuous movement to obtain at least a layer, which after it has consolidated, is detached from its support, turned over, then by casting a composition on the face of the first layer which, when being formed, initially was in contact with the support, to obtain a second layer, the first layer being placed on a horizontal, plane casting support.
    Type: Grant
    Filed: July 23, 1984
    Date of Patent: January 7, 1986
    Assignee: Saint-Gobain Vitrage
    Inventors: Manfred Gillner, Juergen Sieckmann