Patents by Inventor Willi Sei?

Willi Sei? 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).

  • Laminates including two or more layers of organic synthetic filament non-wovens and glass fiber webs and scrims
    Patent number: 7351673
    Abstract: In accordance with the invention, a laminate of two or more layers and the method of making it is provided. The laminate includes at least one organic synthetic filament non-woven layer, and at least one woven web or scrim of glass fibers pre-consolidated by a binding agent. The polyester non-wovens and the woven webs or scrims are bound by needling such that a part of the (e.g., polyester) filaments penetrate through the laminate and emerge at the lower surface of the laminate and lie adjacent thereto The formed laminate is subjected to a final consolidation by an acrylate or a styrene binder.
    Type: Grant
    Filed: July 19, 2000
    Date of Patent: April 1, 2008
    Assignee: Johns Manville
    Inventors: Werner Groh, Michael Schöps, Willi Seiβ, Rolf Schwarz, Monika Nagl, Wofgang Greiser, Michael Zeiner, Jürgen Umminger