Patents by Inventor Karl F. Stroeml

Karl F. Stroeml 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).

  • Biological fiber containing construction compound
    Patent number: 5958130
    Abstract: A construction compound of the kind including a hydraulic binder such as cement and natural bast fibers of a length of between 1 and 50 mm in a concentration of from about 0.3 to about 3.0 kg of fibers per cubic meter of compound, said fibers being derived from fully ripened plants including hemp, flax, kenaf and nettle.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: September 28, 1999
    Assignee: Karl F. Stroeml
    Inventors: Karl F. Stroeml, Gerhard Uiberlacker