Patents by Inventor Hans G. Vrijburg

Hans G. Vrijburg 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).

  • Patent number: 4366885
    Abstract: A protective strip or bumper for a road vehicle has an energy absorbing structure, partly formed of plastics material, mounted on a metal backing member. Within the plastics material body are a plurality of metal crushable elements which are plastically deformable in order to absorb energy when an impact occurs and which are also readily replaceable.
    Type: Grant
    Filed: September 16, 1980
    Date of Patent: January 4, 1983
    Assignee: Hoogovens Ijmuiden B.V.
    Inventor: Hans G. Vrijburg