Patents by Inventor Ralf Passman

Ralf Passman 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).

  • Sacrificial energy absorbing structure
    Patent number: 6387200
    Abstract: The invention thus provides a method of making a foam-filled composite matrix having a cellular core, and the composite matrix of the method, e.g. for use as sacrificial energy absorbing structures particularly for the passenger compartments of vehicles, e.g. motor vehicles. Thus the structures may be used in head linings in automobiles and as linings and even seats in vehicles such as aircraft. Additionally the structures may form crash padding in crash helmets and body armour.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: May 14, 2002
    Assignee: Cellbond Composites Limited
    Inventors: Michael Ashmead, Paul Blauberger, Werner Lehr, Ralf Passman