Patents by Inventor Hansgeorg Balthaus

Hansgeorg Balthaus 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: 5061119
    Abstract: A method for the remediation of contaminated soils, in which, without transport of the soil to the surface, a loosening of the soil structure is achieved by progressively injecting a liquid under high pressure into at least one cylindrically shaped soil body. Besides loosening the soil the liquid also serves as a carrier and transport medium for at least one effective substance, which decomposes and/or converts the respective contaminant on site. By this method, the effective substances are uniformly distributed in the soil treatment zones and reach the contaminants even in heterogeneous soil structures.
    Type: Grant
    Filed: August 17, 1990
    Date of Patent: October 29, 1991
    Assignee: Philipp Holzmann Aktiengesellschaft
    Inventors: Hansgeorg Balthaus, Karl Hoffmann