Patents by Inventor Jurgen Bergfelder

Jurgen Bergfelder 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).

  • Fender pile
    Patent number: 4919572
    Abstract: Concrete fender pile having prestressing members (19, 20) of elongated, high-strength fiber composite elements (21) with a low modulus of elasticity which, during a ramming impact (p), permit a large elastic deflection of the fender pile (14) and are insensitive to aggressive environmental effects.
    Type: Grant
    Filed: September 12, 1988
    Date of Patent: April 24, 1990
    Assignee: Strabag Bau-AG
    Inventor: Jurgen Bergfelder